Restrict ETC1 power-of-two rounding to old IMG drivers.

content/browser/renderer_host/compositor_impl_android.h

Index: content/browser/renderer_host/compositor_impl_android.h
diff --git a/content/browser/renderer_host/compositor_impl_android.h b/content/browser/renderer_host/compositor_impl_android.h
index e24d58185b8db0fbe02f1077ae4ff3667a8b0236..dfcda554f681ab0d17ed376458a20350e8247402 100644
--- a/content/browser/renderer_host/compositor_impl_android.h
+++ b/content/browser/renderer_host/compositor_impl_android.h
@@ -15,6 +15,7 @@
 #include "content/browser/android/ui_resource_provider_impl.h"
 #include "content/browser/renderer_host/image_transport_factory_android.h"
 #include "content/common/content_export.h"
+#include "content/common/gpu/client/context_provider_command_buffer.h"
 #include "content/public/browser/android/compositor.h"
 #include "third_party/khronos/GLES2/gl2.h"
 #include "ui/base/android/system_ui_resource_manager.h"
@@ -75,7 +76,7 @@ class CONTENT_EXPORT CompositorImpl
                                    float page_scale) OVERRIDE {}
   virtual scoped_ptr<cc::OutputSurface> CreateOutputSurface(bool fallback)
       OVERRIDE;
-  virtual void DidInitializeOutputSurface() OVERRIDE {}
+  virtual void DidInitializeOutputSurface() OVERRIDE;
   virtual void WillCommit() OVERRIDE {}
   virtual void DidCommit() OVERRIDE;
   virtual void DidCommitAndDrawFrame() OVERRIDE {}
@@ -135,6 +136,7 @@ class CONTENT_EXPORT CompositorImpl
   scoped_refptr<cc::Layer> subroot_layer_;
 
   scoped_ptr<cc::LayerTreeHost> host_;
+  scoped_refptr<content::ContextProviderCommandBuffer> context_provider_;
   content::UIResourceProviderImpl ui_resource_provider_;
 
   gfx::Size size_;