Merge 106610 - Avoid crashing renderer when GPU process dies by not caching textures between vide...

Source/WebCore/platform/graphics/chromium/cc/CCVideoLayerImpl.cpp

Index: Source/WebCore/platform/graphics/chromium/cc/CCVideoLayerImpl.cpp
===================================================================
--- Source/WebCore/platform/graphics/chromium/cc/CCVideoLayerImpl.cpp	(revision 106674)
+++ Source/WebCore/platform/graphics/chromium/cc/CCVideoLayerImpl.cpp	(working copy)
@@ -150,8 +150,17 @@
         CRASH(); // Someone updated convertVFCFormatToGC3DFormat above but update this!
     }
 
-    for (unsigned plane = 0; plane < frame->planes(); ++plane)
+    for (unsigned plane = 0; plane < frame->planes(); ++plane) {
         m_textures[plane].m_texture->unreserve();
+        // FIXME: ManagedTexture's store a raw pointer to their TextureManager,
+        // and the textures we create use layerRenderer->renderSurfaceTextureManager().
+        // Since there is no guarantee layerRenderer will still be alive the
+        // next time we are called, we clear the texture reference. It would
+        // be nice if instead we could rely on textures being invalidated when
+        // their manager was deleted so that new textures didn't always have to
+        // be recreated for each frame.
+        m_textures[plane].m_texture.clear();
+    }
     m_provider->putCurrentFrame(frame);
 }