Add GL surface creation for Android.

content/browser/gpu/gpu_surface_tracker.h

Index: content/browser/gpu/gpu_surface_tracker.h
diff --git a/content/browser/gpu/gpu_surface_tracker.h b/content/browser/gpu/gpu_surface_tracker.h
index 88f575ae50d82b6b9f8fcf5b0491c094b5cb1f51..23b00f26bb8d2d2493ac13ef42dd506f173f5c34 100644
--- a/content/browser/gpu/gpu_surface_tracker.h
+++ b/content/browser/gpu/gpu_surface_tracker.h
@@ -13,6 +13,10 @@
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/size.h"
 
+#if defined(OS_ANDROID)
+gfx::AcceleratedWidget GetNativeWidgetAndroid(int surface_id);
+#endif
+
 // This class is responsible for managing rendering surfaces exposed to the
 // GPU process. Every surface gets registered to this class, and gets an ID.
 // All calls to and from the GPU process, with the exception of
@@ -40,6 +44,9 @@ class GpuSurfaceTracker {
   // Adds a surface for a native widget. Returns the surface ID.
   int AddSurfaceForNativeWidget(gfx::AcceleratedWidget widget);
 
+  // Returns the native widget associated with a given surface_id.
+  gfx::AcceleratedWidget GetNativeWidget(int surface_id);
+
   // Removes a given existing surface.
   void RemoveSurface(int surface_id);