[Webkit-unassigned] [Bug 266244] New: REGRESSION(271419 at main): [GTK][WPE] Build fails if clang <= 14

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=266244

            Bug ID: 266244
           Summary: REGRESSION(271419 at main): [GTK][WPE] Build fails if
                    clang <= 14
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dpino at igalia.com

WebKitGTK and WPE are failing to build when using clang 14 after 271419 at main. This changeset introduced a change that makes use of `std::views::values` in the files:
  - Source/WebCore/platform/graphics/gstreamer/mse/SourceBufferPrivateGStreamer.cpp
  - Source/WebCore/platform/graphics/gstreamer/mse/SourceBufferPrivateGStreamer.h

It seems clang-14 doesn't support `std::views:values`. Here is a small example that fails to build with clang-14:

```
#include <iostream>
#include <map>
#include <ranges>

int main() {
    std::map<int, std::string> myMap{
        {1, "one"},
        {2, "two"},
        {3, "three"}
    };

    for (const auto& value : std::views::values(myMap)) {
        std::cout << "Value: " << value << std::endl;
    }

    return 0;
}
```

Since this feature is only used in these two files in the entire WebKit codebase, I'd like to revert the changes in those two files, so WebKitGTK and WPE can still be built with clang-14.

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