Enabled EXT_sRGB WebGL extension support in the command buffer.

gpu/command_buffer/service/texture_manager.h

Index: gpu/command_buffer/service/texture_manager.h
diff --git a/gpu/command_buffer/service/texture_manager.h b/gpu/command_buffer/service/texture_manager.h
index 063ecc55f9224d16b4a95f387c7a0adaa3699ab8..25bc2ff9f4f1bc24a3c51aaf299c63c3f5a1e28f 100644
--- a/gpu/command_buffer/service/texture_manager.h
+++ b/gpu/command_buffer/service/texture_manager.h
@@ -814,6 +814,8 @@ class GPU_EXPORT TextureManager {
   void UpdateNumImages(int delta);
   void IncFramebufferStateChangeCount();
 
+  GLenum AdjustTexFormat(GLenum format) const;
+
   MemoryTypeTracker* GetMemTracker(GLenum texture_pool);
   scoped_ptr<MemoryTypeTracker> memory_tracker_managed_;
   scoped_ptr<MemoryTypeTracker> memory_tracker_unmanaged_;