2009-04-22 Simon Fraser <simon.fraser@apple.com>

        Reviewed by Adele Peterson

        <rdar://problem/6702882> QT movie's video fails to be displayed after switching between tabs
        <rdar://problem/6754957> Resizing Web browser window and hitting play will cause video blocks and artifacting

        When in a media document, MediaPlayerPrivateQTKit uses a QTMovieView which may get
        layer backing under some circumstances. However, drawing the view via
        displayRectIgnoringOpacity:inContext: bypasses any layer setup that AppKit normally performs.
        So when in the media document, we draw via displayRectIgnoringOpacity:.

        * platform/graphics/mac/MediaPlayerPrivateQTKit.mm:
        (WebCore::MediaPlayerPrivate::paint):

git-svn-id: svn://svn.chromium.org/blink/trunk@42759 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/WebCore/ChangeLog

+2009-04-22  Simon Fraser  <simon.fraser@apple.com>
+
+        Reviewed by Adele Peterson
+        
+        <rdar://problem/6702882> QT movie's video fails to be displayed after switching between tabs
+        <rdar://problem/6754957> Resizing Web browser window and hitting play will cause video blocks and artifacting
+
+        When in a media document, MediaPlayerPrivateQTKit uses a QTMovieView which may get
+        layer backing under some circumstances. However, drawing the view via
+        displayRectIgnoringOpacity:inContext: bypasses any layer setup that AppKit normally performs.
+        So when in the media document, we draw via displayRectIgnoringOpacity:.
+
+        * platform/graphics/mac/MediaPlayerPrivateQTKit.mm:
+        (WebCore::MediaPlayerPrivate::paint):
+
 2009-04-22  Timothy Hatcher  <timothy@apple.com>
 
         Fix a crash in Mail when forwarding a specific HTML email.

third_party/WebKit/WebCore/platform/graphics/mac/MediaPlayerPrivateQTKit.mm

@@ -867,7 +867,13 @@ void MediaPlayerPrivate::paint(GraphicsContext* context, const IntRect& r)
             }
         }
 
-        [view displayRectIgnoringOpacity:paintRect inContext:newContext];
+        if (m_player->inMediaDocument()) {
+            // If we're using a QTMovieView in a media document, the view may get layer-backed. AppKit won't update
+            // the layer hosting correctly if we call displayRectIgnoringOpacity:inContext:, so use displayRectIgnoringOpacity:
+            // in this case. See <rdar://problem/6702882>.
+            [view displayRectIgnoringOpacity:paintRect];
+        } else
+            [view displayRectIgnoringOpacity:paintRect inContext:newContext];
     }
 
 #if DRAW_FRAME_RATE