Merge r220902 - [GTK] Make TestContextMenu work on Fedora

https://bugs.webkit.org/show_bug.cgi?id=175708

Reviewed by Carlos Garcia Campos.

TestContextMenu has been broken for as long as I remember, but not on the bots, only for me
and my student last summer who was trying to work on a context menu API. It's trying to load
an MPEG-2 video file and confirm that right-clicking on it shows media element context menu
entries. Doesn't work on Fedora. Dunno why, since Fedora actually can play MPEG-2, but I
don't care to investigate. Let's switch it to WebM so I can move on.

* TestWebKitAPI/Tests/WebKit2Gtk/TestContextMenu.cpp:
(prepareContextMenuTestView):
* TestWebKitAPI/Tests/WebKitGLib/resources/silence.mpg: Removed.
* TestWebKitAPI/Tests/WebKitGLib/resources/silence.webm: Added.

Tools/ChangeLog

@@ -1,3 +1,21 @@
+2017-08-17  Michael Catanzaro  <mcatanzaro@igalia.com>
+
+        [GTK] Make TestContextMenu work on Fedora
+        https://bugs.webkit.org/show_bug.cgi?id=175708
+
+        Reviewed by Carlos Garcia Campos.
+
+        TestContextMenu has been broken for as long as I remember, but not on the bots, only for me
+        and my student last summer who was trying to work on a context menu API. It's trying to load
+        an MPEG-2 video file and confirm that right-clicking on it shows media element context menu
+        entries. Doesn't work on Fedora. Dunno why, since Fedora actually can play MPEG-2, but I
+        don't care to investigate. Let's switch it to WebM so I can move on.
+
+        * TestWebKitAPI/Tests/WebKit2Gtk/TestContextMenu.cpp:
+        (prepareContextMenuTestView):
+        * TestWebKitAPI/Tests/WebKitGLib/resources/silence.mpg: Removed.
+        * TestWebKitAPI/Tests/WebKitGLib/resources/silence.webm: Added.
+
 2017-08-18  Commit Queue  <commit-queue@webkit.org>
 
         Unreviewed, rolling out r220854.

Tools/TestWebKitAPI/Tests/WebKit2Gtk/TestContextMenu.cpp

@@ -440,7 +440,7 @@ static void prepareContextMenuTestView(ContextMenuDefaultTest* test)
         " <img style='position:absolute; left:1; top:10' src='blank.ico' width=5 height=5></img>"
         " <a style='position:absolute; left:1; top:20' href='http://www.webkitgtk.org/logo' title='WebKitGTK+ Logo'><img src='blank.ico' width=5 height=5></img></a>"
         " <input style='position:absolute; left:1; top:30' size='10'></input>"
-        " <video style='position:absolute; left:1; top:50' width='300' height='300' controls='controls' preload='none'><source src='silence.mpg' type='video/mpeg' /></video>"
+        " <video style='position:absolute; left:1; top:50' width='300' height='300' controls='controls' preload='none'><source src='silence.webm' type='video/webm' /></video>"
         " <audio style='position:absolute; left:1; top:60' width='50' height='20' controls='controls' preload='none'><source src='track.ogg' type='audio/ogg' /></audio>"
         " <p style='position:absolute; left:1; top:90' id='text_to_select'>Lorem ipsum.</p>"
         " <script>"