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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/213936">213936</a></dd>
<dt>Author</dt> <dd>jer.noble@apple.com</dd>
<dt>Date</dt> <dd>2017-03-14 13:50:47 -0700 (Tue, 14 Mar 2017)</dd>
</dl>

<h3>Log Message</h3>
<pre>Make classes used by Media Stream encode/decode friendly
https://bugs.webkit.org/show_bug.cgi?id=169567

Reviewed by Eric Carlson.

Source/WebCore:

Add encode() and decode() methods and implementations to a variety of media stream related classes.

* platform/audio/mac/CAAudioStreamDescription.h:
(WebCore::CAAudioStreamDescription::encode):
(WebCore::CAAudioStreamDescription::decode):
* platform/mediastream/RealtimeMediaSourceSettings.h:
(WebCore::RealtimeMediaSourceSettings::width):
(WebCore::RealtimeMediaSourceSettings::setWidth):
(WebCore::RealtimeMediaSourceSettings::height):
(WebCore::RealtimeMediaSourceSettings::setHeight):
(WebCore::RealtimeMediaSourceSettings::sampleRate):
(WebCore::RealtimeMediaSourceSettings::setSampleRate):
(WebCore::RealtimeMediaSourceSettings::sampleSize):
(WebCore::RealtimeMediaSourceSettings::setSampleSize):
(WebCore::RealtimeMediaSourceSettings::encode):
(WebCore::RealtimeMediaSourceSettings::decode):
* platform/mediastream/RealtimeMediaSourceSupportedConstraints.h:
(WebCore::RealtimeMediaSourceSupportedConstraints::encode):
(WebCore::RealtimeMediaSourceSupportedConstraints::decode):

Source/WebKit2:

Make the encoder and decoder for MediaConstraintsData a little less wordy.

* Shared/WebCoreArgumentCoders.cpp:
(IPC::ArgumentCoder&lt;MediaConstraintsData&gt;::encode):
(IPC::ArgumentCoder&lt;MediaConstraintsData&gt;::decode):

Source/WTF:

* wtf/MediaTime.h:
(WTF::MediaTime::encode):
(WTF::MediaTime::decode):</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWTFChangeLog">trunk/Source/WTF/ChangeLog</a></li>
<li><a href="#trunkSourceWTFwtfMediaTimeh">trunk/Source/WTF/wtf/MediaTime.h</a></li>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreplatformaudiomacCAAudioStreamDescriptionh">trunk/Source/WebCore/platform/audio/mac/CAAudioStreamDescription.h</a></li>
<li><a href="#trunkSourceWebCoreplatformmediastreamCaptureDeviceh">trunk/Source/WebCore/platform/mediastream/CaptureDevice.h</a></li>
<li><a href="#trunkSourceWebCoreplatformmediastreamRealtimeMediaSourceSettingsh">trunk/Source/WebCore/platform/mediastream/RealtimeMediaSourceSettings.h</a></li>
<li><a href="#trunkSourceWebCoreplatformmediastreamRealtimeMediaSourceSupportedConstraintsh">trunk/Source/WebCore/platform/mediastream/RealtimeMediaSourceSupportedConstraints.h</a></li>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2SharedWebCoreArgumentCoderscpp">trunk/Source/WebKit2/Shared/WebCoreArgumentCoders.cpp</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWTFChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WTF/ChangeLog (213935 => 213936)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WTF/ChangeLog        2017-03-14 20:45:52 UTC (rev 213935)
+++ trunk/Source/WTF/ChangeLog        2017-03-14 20:50:47 UTC (rev 213936)
</span><span class="lines">@@ -1,3 +1,14 @@
</span><ins>+2017-03-13  Jer Noble  &lt;jer.noble@apple.com&gt;
+
+        Make classes used by Media Stream encode/decode friendly
+        https://bugs.webkit.org/show_bug.cgi?id=169567
+
+        Reviewed by Eric Carlson.
+
+        * wtf/MediaTime.h:
+        (WTF::MediaTime::encode):
+        (WTF::MediaTime::decode):
+
</ins><span class="cx"> 2017-03-14  Yusuke Suzuki  &lt;utatane.tea@gmail.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Add secondsAs&lt;T&gt; methods to Seconds to convert it to integers with clamp
</span></span></pre></div>
<a id="trunkSourceWTFwtfMediaTimeh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WTF/wtf/MediaTime.h (213935 => 213936)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WTF/wtf/MediaTime.h        2017-03-14 20:45:52 UTC (rev 213935)
+++ trunk/Source/WTF/wtf/MediaTime.h        2017-03-14 20:50:47 UTC (rev 213936)
</span><span class="lines">@@ -130,6 +130,9 @@
</span><span class="cx"> 
</span><span class="cx">     MediaTime toTimeScale(uint32_t, RoundingFlags = RoundingFlags::HalfAwayFromZero) const;
</span><span class="cx"> 
</span><ins>+    template&lt;class Encoder&gt; void encode(Encoder&amp;) const;
+    template&lt;class Decoder&gt; static bool decode(Decoder&amp;, MediaTime&amp;);
+
</ins><span class="cx"> private:
</span><span class="cx">     void setTimeScale(uint32_t, RoundingFlags = RoundingFlags::HalfAwayFromZero);
</span><span class="cx"> 
</span><span class="lines">@@ -144,8 +147,23 @@
</span><span class="cx"> inline MediaTime operator*(int32_t lhs, const MediaTime&amp; rhs) { return rhs.operator*(lhs); }
</span><span class="cx"> 
</span><span class="cx"> WTF_EXPORT_PRIVATE extern MediaTime abs(const MediaTime&amp; rhs);
</span><ins>+
+template&lt;class Encoder&gt;
+void MediaTime::encode(Encoder&amp; encoder) const
+{
+    encoder &lt;&lt; m_timeValue &lt;&lt; m_timeScale &lt;&lt; m_timeFlags;
</ins><span class="cx"> }
</span><span class="cx"> 
</span><ins>+template&lt;class Decoder&gt;
+bool MediaTime::decode(Decoder&amp; decoder, MediaTime&amp; time)
+{
+    return decoder.decode(time.m_timeValue)
+        &amp;&amp; decoder.decode(time.m_timeScale)
+        &amp;&amp; decoder.decode(time.m_timeFlags);
+}
+
+}
+
</ins><span class="cx"> using WTF::MediaTime;
</span><span class="cx"> using WTF::abs;
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (213935 => 213936)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2017-03-14 20:45:52 UTC (rev 213935)
+++ trunk/Source/WebCore/ChangeLog        2017-03-14 20:50:47 UTC (rev 213936)
</span><span class="lines">@@ -1,3 +1,30 @@
</span><ins>+2017-03-13  Jer Noble  &lt;jer.noble@apple.com&gt;
+
+        Make classes used by Media Stream encode/decode friendly
+        https://bugs.webkit.org/show_bug.cgi?id=169567
+
+        Reviewed by Eric Carlson.
+
+        Add encode() and decode() methods and implementations to a variety of media stream related classes.
+
+        * platform/audio/mac/CAAudioStreamDescription.h:
+        (WebCore::CAAudioStreamDescription::encode):
+        (WebCore::CAAudioStreamDescription::decode):
+        * platform/mediastream/RealtimeMediaSourceSettings.h:
+        (WebCore::RealtimeMediaSourceSettings::width):
+        (WebCore::RealtimeMediaSourceSettings::setWidth):
+        (WebCore::RealtimeMediaSourceSettings::height):
+        (WebCore::RealtimeMediaSourceSettings::setHeight):
+        (WebCore::RealtimeMediaSourceSettings::sampleRate):
+        (WebCore::RealtimeMediaSourceSettings::setSampleRate):
+        (WebCore::RealtimeMediaSourceSettings::sampleSize):
+        (WebCore::RealtimeMediaSourceSettings::setSampleSize):
+        (WebCore::RealtimeMediaSourceSettings::encode):
+        (WebCore::RealtimeMediaSourceSettings::decode):
+        * platform/mediastream/RealtimeMediaSourceSupportedConstraints.h:
+        (WebCore::RealtimeMediaSourceSupportedConstraints::encode):
+        (WebCore::RealtimeMediaSourceSupportedConstraints::decode):
+
</ins><span class="cx"> 2017-03-14  Jer Noble  &lt;jer.noble@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Adapt CARingBuffer to be usable across processes
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformaudiomacCAAudioStreamDescriptionh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/audio/mac/CAAudioStreamDescription.h (213935 => 213936)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/audio/mac/CAAudioStreamDescription.h        2017-03-14 20:45:52 UTC (rev 213935)
+++ trunk/Source/WebCore/platform/audio/mac/CAAudioStreamDescription.h        2017-03-14 20:50:47 UTC (rev 213936)
</span><span class="lines">@@ -30,7 +30,7 @@
</span><span class="cx"> 
</span><span class="cx"> namespace WebCore {
</span><span class="cx"> 
</span><del>-bool operator==(const AudioStreamBasicDescription&amp;, const AudioStreamBasicDescription&amp;);
</del><ins>+WEBCORE_EXPORT bool operator==(const AudioStreamBasicDescription&amp;, const AudioStreamBasicDescription&amp;);
</ins><span class="cx"> inline bool operator!=(const AudioStreamBasicDescription&amp; a, const AudioStreamBasicDescription&amp; b) { return !(a == b); }
</span><span class="cx"> 
</span><span class="cx"> class CAAudioStreamDescription final : public AudioStreamDescription {
</span><span class="lines">@@ -76,6 +76,9 @@
</span><span class="cx">     const AudioStreamBasicDescription&amp; streamDescription() const { return m_streamDescription; }
</span><span class="cx">     AudioStreamBasicDescription&amp; streamDescription() { return m_streamDescription; }
</span><span class="cx"> 
</span><ins>+    template&lt;class Encoder&gt; void encode(Encoder&amp;) const;
+    template&lt;class Decoder&gt; static bool decode(Decoder&amp;, CAAudioStreamDescription&amp;);
+
</ins><span class="cx"> private:
</span><span class="cx">     void calculateFormat();
</span><span class="cx"> 
</span><span class="lines">@@ -84,6 +87,36 @@
</span><span class="cx">     mutable PCMFormat m_format { None };
</span><span class="cx"> };
</span><span class="cx"> 
</span><ins>+template&lt;class Encoder&gt;
+void CAAudioStreamDescription::encode(Encoder&amp; encoder) const
+{
+    encoder &lt;&lt; m_streamDescription.mSampleRate
+        &lt;&lt; m_streamDescription.mFormatID
+        &lt;&lt; m_streamDescription.mFormatFlags
+        &lt;&lt; m_streamDescription.mBytesPerPacket
+        &lt;&lt; m_streamDescription.mFramesPerPacket
+        &lt;&lt; m_streamDescription.mBytesPerFrame
+        &lt;&lt; m_streamDescription.mChannelsPerFrame
+        &lt;&lt; m_streamDescription.mBitsPerChannel
+        &lt;&lt; m_streamDescription.mReserved;
+    encoder.encodeEnum(m_format);
+}
+
+template&lt;class Decoder&gt;
+bool CAAudioStreamDescription::decode(Decoder&amp; decoder, CAAudioStreamDescription&amp; description)
+{
+    return decoder.decode(description.m_streamDescription.mSampleRate)
+        &amp;&amp; decoder.decode(description.m_streamDescription.mFormatID)
+        &amp;&amp; decoder.decode(description.m_streamDescription.mFormatFlags)
+        &amp;&amp; decoder.decode(description.m_streamDescription.mBytesPerPacket)
+        &amp;&amp; decoder.decode(description.m_streamDescription.mFramesPerPacket)
+        &amp;&amp; decoder.decode(description.m_streamDescription.mBytesPerFrame)
+        &amp;&amp; decoder.decode(description.m_streamDescription.mChannelsPerFrame)
+        &amp;&amp; decoder.decode(description.m_streamDescription.mBitsPerChannel)
+        &amp;&amp; decoder.decode(description.m_streamDescription.mReserved)
+        &amp;&amp; decoder.decodeEnum(description.m_format);
+}
+
</ins><span class="cx"> inline CAAudioStreamDescription toCAAudioStreamDescription(const AudioStreamDescription&amp; description)
</span><span class="cx"> {
</span><span class="cx">     ASSERT(description.platformDescription().type == PlatformDescription::CAAudioStreamBasicType);
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformmediastreamCaptureDeviceh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/mediastream/CaptureDevice.h (213935 => 213936)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/mediastream/CaptureDevice.h        2017-03-14 20:45:52 UTC (rev 213935)
+++ trunk/Source/WebCore/platform/mediastream/CaptureDevice.h        2017-03-14 20:50:47 UTC (rev 213936)
</span><span class="lines">@@ -59,6 +59,7 @@
</span><span class="cx"> 
</span><span class="cx">     bool enabled() const { return m_enabled; }
</span><span class="cx">     void setEnabled(bool enabled) { m_enabled = enabled; }
</span><ins>+
</ins><span class="cx"> private:
</span><span class="cx">     String m_persistentId;
</span><span class="cx">     DeviceType m_type { DeviceType::Unknown };
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformmediastreamRealtimeMediaSourceSettingsh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/mediastream/RealtimeMediaSourceSettings.h (213935 => 213936)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/mediastream/RealtimeMediaSourceSettings.h        2017-03-14 20:45:52 UTC (rev 213935)
+++ trunk/Source/WebCore/platform/mediastream/RealtimeMediaSourceSettings.h        2017-03-14 20:50:47 UTC (rev 213936)
</span><span class="lines">@@ -49,12 +49,12 @@
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     bool supportsWidth() const { return m_supportedConstraints.supportsWidth(); }
</span><del>-    unsigned long width() const { return m_width; }
-    void setWidth(unsigned long width) { m_width = width; }
</del><ins>+    uint32_t width() const { return m_width; }
+    void setWidth(uint32_t width) { m_width = width; }
</ins><span class="cx"> 
</span><span class="cx">     bool supportsHeight() const { return m_supportedConstraints.supportsHeight(); }
</span><del>-    unsigned long height() const { return m_height; }
-    void setHeight(unsigned long height) { m_height = height; }
</del><ins>+    uint32_t height() const { return m_height; }
+    void setHeight(uint32_t height) { m_height = height; }
</ins><span class="cx"> 
</span><span class="cx">     bool supportsAspectRatio() const { return m_supportedConstraints.supportsAspectRatio(); }
</span><span class="cx">     float aspectRatio() const { return m_aspectRatio; }
</span><span class="lines">@@ -73,12 +73,12 @@
</span><span class="cx">     void setVolume(double volume) { m_volume = volume; }
</span><span class="cx"> 
</span><span class="cx">     bool supportsSampleRate() const { return m_supportedConstraints.supportsSampleRate(); }
</span><del>-    unsigned long sampleRate() const { return m_sampleRate; }
-    void setSampleRate(unsigned long sampleRate) { m_sampleRate = sampleRate; }
</del><ins>+    uint32_t sampleRate() const { return m_sampleRate; }
+    void setSampleRate(uint32_t sampleRate) { m_sampleRate = sampleRate; }
</ins><span class="cx"> 
</span><span class="cx">     bool supportsSampleSize() const { return m_supportedConstraints.supportsSampleSize(); }
</span><del>-    unsigned long sampleSize() const { return m_sampleSize; }
-    void setSampleSize(unsigned long sampleSize) { m_sampleSize = sampleSize; }
</del><ins>+    uint32_t sampleSize() const { return m_sampleSize; }
+    void setSampleSize(uint32_t sampleSize) { m_sampleSize = sampleSize; }
</ins><span class="cx"> 
</span><span class="cx">     bool supportsEchoCancellation() const { return m_supportedConstraints.supportsEchoCancellation(); }
</span><span class="cx">     bool echoCancellation() const { return m_echoCancellation; }
</span><span class="lines">@@ -94,15 +94,18 @@
</span><span class="cx"> 
</span><span class="cx">     void setSupportedConstraits(const RealtimeMediaSourceSupportedConstraints&amp; supportedConstraints) { m_supportedConstraints = supportedConstraints; }
</span><span class="cx"> 
</span><ins>+    template&lt;class Encoder&gt; void encode(Encoder&amp;) const;
+    template&lt;class Decoder&gt; static bool decode(Decoder&amp;, RealtimeMediaSourceSettings&amp;);
+
</ins><span class="cx"> private:
</span><del>-    unsigned long m_width { 0 };
-    unsigned long m_height { 0 };
</del><ins>+    uint32_t m_width { 0 };
+    uint32_t m_height { 0 };
</ins><span class="cx">     float m_aspectRatio { 0 };
</span><span class="cx">     float m_frameRate { 0 };
</span><span class="cx">     VideoFacingMode m_facingMode { Unknown };
</span><span class="cx">     double m_volume { 0 };
</span><del>-    unsigned long m_sampleRate { 0 };
-    unsigned long m_sampleSize { 0 };
</del><ins>+    uint32_t m_sampleRate { 0 };
+    uint32_t m_sampleSize { 0 };
</ins><span class="cx">     bool m_echoCancellation { 0 };
</span><span class="cx"> 
</span><span class="cx">     AtomicString m_deviceId;
</span><span class="lines">@@ -111,6 +114,40 @@
</span><span class="cx">     RealtimeMediaSourceSupportedConstraints m_supportedConstraints;
</span><span class="cx"> };
</span><span class="cx"> 
</span><ins>+template&lt;class Encoder&gt;
+void RealtimeMediaSourceSettings::encode(Encoder&amp; encoder) const
+{
+    encoder &lt;&lt; m_width
+        &lt;&lt; m_height
+        &lt;&lt; m_aspectRatio
+        &lt;&lt; m_frameRate
+        &lt;&lt; m_volume
+        &lt;&lt; m_sampleRate
+        &lt;&lt; m_sampleSize
+        &lt;&lt; m_echoCancellation
+        &lt;&lt; m_deviceId
+        &lt;&lt; m_groupId
+        &lt;&lt; m_supportedConstraints;
+    encoder.encodeEnum(m_facingMode);
+}
+
+template&lt;class Decoder&gt;
+bool RealtimeMediaSourceSettings::decode(Decoder&amp; decoder, RealtimeMediaSourceSettings&amp; settings)
+{
+    return decoder.decode(settings.m_width)
+        &amp;&amp; decoder.decode(settings.m_height)
+        &amp;&amp; decoder.decode(settings.m_aspectRatio)
+        &amp;&amp; decoder.decode(settings.m_frameRate)
+        &amp;&amp; decoder.decode(settings.m_volume)
+        &amp;&amp; decoder.decode(settings.m_sampleRate)
+        &amp;&amp; decoder.decode(settings.m_sampleSize)
+        &amp;&amp; decoder.decode(settings.m_echoCancellation)
+        &amp;&amp; decoder.decode(settings.m_deviceId)
+        &amp;&amp; decoder.decode(settings.m_groupId)
+        &amp;&amp; decoder.decode(settings.m_supportedConstraints)
+        &amp;&amp; decoder.decodeEnum(settings.m_facingMode);
+}
+
</ins><span class="cx"> } // namespace WebCore
</span><span class="cx"> 
</span><span class="cx"> #endif // RealtimeMediaSourceSettings_h
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformmediastreamRealtimeMediaSourceSupportedConstraintsh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/mediastream/RealtimeMediaSourceSupportedConstraints.h (213935 => 213936)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/mediastream/RealtimeMediaSourceSupportedConstraints.h        2017-03-14 20:45:52 UTC (rev 213935)
+++ trunk/Source/WebCore/platform/mediastream/RealtimeMediaSourceSupportedConstraints.h        2017-03-14 20:50:47 UTC (rev 213936)
</span><span class="lines">@@ -96,6 +96,9 @@
</span><span class="cx">     static const AtomicString&amp; nameForConstraint(MediaConstraintType);
</span><span class="cx">     static MediaConstraintType constraintFromName(const String&amp;);
</span><span class="cx"> 
</span><ins>+    template&lt;class Encoder&gt; void encode(Encoder&amp;) const;
+    template&lt;class Decoder&gt; static bool decode(Decoder&amp;, RealtimeMediaSourceSupportedConstraints&amp;);
+
</ins><span class="cx"> private:
</span><span class="cx">     bool m_supportsWidth { false };
</span><span class="cx">     bool m_supportsHeight { false };
</span><span class="lines">@@ -110,6 +113,38 @@
</span><span class="cx">     bool m_supportsGroupId { false };
</span><span class="cx"> };
</span><span class="cx"> 
</span><ins>+template&lt;class Encoder&gt;
+void RealtimeMediaSourceSupportedConstraints::encode(Encoder&amp; encoder) const
+{
+    encoder &lt;&lt; m_supportsWidth
+        &lt;&lt; m_supportsHeight
+        &lt;&lt; m_supportsAspectRatio
+        &lt;&lt; m_supportsFrameRate
+        &lt;&lt; m_supportsFacingMode
+        &lt;&lt; m_supportsVolume
+        &lt;&lt; m_supportsSampleRate
+        &lt;&lt; m_supportsSampleSize
+        &lt;&lt; m_supportsEchoCancellation
+        &lt;&lt; m_supportsDeviceId
+        &lt;&lt; m_supportsGroupId;
+}
+
+template&lt;class Decoder&gt;
+bool RealtimeMediaSourceSupportedConstraints::decode(Decoder&amp; decoder, RealtimeMediaSourceSupportedConstraints&amp; constraints)
+{
+    return decoder.decode(constraints.m_supportsWidth)
+        &amp;&amp; decoder.decode(constraints.m_supportsHeight)
+        &amp;&amp; decoder.decode(constraints.m_supportsAspectRatio)
+        &amp;&amp; decoder.decode(constraints.m_supportsFrameRate)
+        &amp;&amp; decoder.decode(constraints.m_supportsFacingMode)
+        &amp;&amp; decoder.decode(constraints.m_supportsVolume)
+        &amp;&amp; decoder.decode(constraints.m_supportsSampleRate)
+        &amp;&amp; decoder.decode(constraints.m_supportsSampleSize)
+        &amp;&amp; decoder.decode(constraints.m_supportsEchoCancellation)
+        &amp;&amp; decoder.decode(constraints.m_supportsDeviceId)
+        &amp;&amp; decoder.decode(constraints.m_supportsGroupId);
+}
+
</ins><span class="cx"> } // namespace WebCore
</span><span class="cx"> 
</span><span class="cx"> #endif // ENABLE(MEDIA_STREAM)
</span></span></pre></div>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (213935 => 213936)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog        2017-03-14 20:45:52 UTC (rev 213935)
+++ trunk/Source/WebKit2/ChangeLog        2017-03-14 20:50:47 UTC (rev 213936)
</span><span class="lines">@@ -1,3 +1,16 @@
</span><ins>+2017-03-13  Jer Noble  &lt;jer.noble@apple.com&gt;
+
+        Make classes used by Media Stream encode/decode friendly
+        https://bugs.webkit.org/show_bug.cgi?id=169567
+
+        Reviewed by Eric Carlson.
+
+        Make the encoder and decoder for MediaConstraintsData a little less wordy.
+
+        * Shared/WebCoreArgumentCoders.cpp:
+        (IPC::ArgumentCoder&lt;MediaConstraintsData&gt;::encode):
+        (IPC::ArgumentCoder&lt;MediaConstraintsData&gt;::decode):
+
</ins><span class="cx"> 2017-03-14  Jer Noble  &lt;jer.noble@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Adapt CARingBuffer to be usable across processes
</span></span></pre></div>
<a id="trunkSourceWebKit2SharedWebCoreArgumentCoderscpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/Shared/WebCoreArgumentCoders.cpp (213935 => 213936)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/Shared/WebCoreArgumentCoders.cpp        2017-03-14 20:45:52 UTC (rev 213935)
+++ trunk/Source/WebKit2/Shared/WebCoreArgumentCoders.cpp        2017-03-14 20:50:47 UTC (rev 213936)
</span><span class="lines">@@ -2348,45 +2348,16 @@
</span><span class="cx"> #if ENABLE(MEDIA_STREAM)
</span><span class="cx"> void ArgumentCoder&lt;MediaConstraintsData&gt;::encode(Encoder&amp; encoder, const WebCore::MediaConstraintsData&amp; constraint)
</span><span class="cx"> {
</span><del>-    encoder &lt;&lt; constraint.mandatoryConstraints;
-
-    auto&amp; advancedConstraints = constraint.advancedConstraints;
-    encoder &lt;&lt; static_cast&lt;uint64_t&gt;(advancedConstraints.size());
-    for (const auto&amp; advancedConstraint : advancedConstraints)
-        encoder &lt;&lt; advancedConstraint;
-
-    encoder &lt;&lt; constraint.isValid;
</del><ins>+    encoder &lt;&lt; constraint.mandatoryConstraints
+        &lt;&lt; constraint.advancedConstraints
+        &lt;&lt; constraint.isValid;
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> bool ArgumentCoder&lt;MediaConstraintsData&gt;::decode(Decoder&amp; decoder, WebCore::MediaConstraintsData&amp; constraints)
</span><span class="cx"> {
</span><del>-    MediaTrackConstraintSetMap mandatoryConstraints;
-    if (!decoder.decode(mandatoryConstraints))
-        return false;
-
-    uint64_t advancedCount;
-    if (!decoder.decode(advancedCount))
-        return false;
-
-    Vector&lt;MediaTrackConstraintSetMap&gt; advancedConstraints;
-    advancedConstraints.reserveInitialCapacity(advancedCount);
-    for (size_t i = 0; i &lt; advancedCount; ++i) {
-        MediaTrackConstraintSetMap map;
-        if (!decoder.decode(map))
-            return false;
-
-        advancedConstraints.uncheckedAppend(WTFMove(map));
-    }
-
-    bool isValid;
-    if (!decoder.decode(isValid))
-        return false;
-
-    constraints.mandatoryConstraints = WTFMove(mandatoryConstraints);
-    constraints.advancedConstraints = WTFMove(advancedConstraints);
-    constraints.isValid = isValid;
-
-    return true;
</del><ins>+    return decoder.decode(constraints.mandatoryConstraints)
+        &amp;&amp; decoder.decode(constraints.advancedConstraints)
+        &amp;&amp; decoder.decode(constraints.isValid);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void ArgumentCoder&lt;CaptureDevice&gt;::encode(Encoder&amp; encoder, const WebCore::CaptureDevice&amp; device)
</span></span></pre>
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