Remove the command buffer method glGetImageivCHROMIUM.

gpu/ipc/client/command_buffer_proxy_impl.h

Index: gpu/ipc/client/command_buffer_proxy_impl.h
diff --git a/gpu/ipc/client/command_buffer_proxy_impl.h b/gpu/ipc/client/command_buffer_proxy_impl.h
index bdc7bc8fca3367a458bce764104154f21ef063fa..1c60dea1368153d705a2d4eb3ef7249f9a226a2f 100644
--- a/gpu/ipc/client/command_buffer_proxy_impl.h
+++ b/gpu/ipc/client/command_buffer_proxy_impl.h
@@ -121,7 +121,6 @@ class GPU_EXPORT CommandBufferProxyImpl
                                      size_t height,
                                      unsigned internal_format,
                                      unsigned usage) override;
-  int32_t GetImageGpuMemoryBufferId(unsigned image_id) override;
   void SignalQuery(uint32_t query, const base::Closure& callback) override;
   void SetLock(base::Lock* lock) override;
   void EnsureWorkVisible() override;
@@ -294,20 +293,6 @@ class GPU_EXPORT CommandBufferProxyImpl
   SwapBuffersCompletionCallback swap_buffers_completion_callback_;
   UpdateVSyncParametersCallback update_vsync_parameters_completion_callback_;
 
-  // |gpu_memory_buffer_id| will always contain a valid (not -1) id.
-  // If the GpuMemoryBuffer was created through this class, then
-  // |owned_gpu_memory_buffer| will also be not null.
-  struct ImageInfo {
-    ImageInfo();
-    ~ImageInfo();
-    ImageInfo(ImageInfo&& other);
-    ImageInfo& operator=(ImageInfo&& other);
-    int32_t gpu_memory_buffer_id = -1;
-    std::unique_ptr<gfx::GpuMemoryBuffer> owned_gpu_memory_buffer;
-  };
-  // A map from image id to ImageInfo.
-  std::map<int32_t, ImageInfo> image_gmb_map_;
-
   base::WeakPtr<CommandBufferProxyImpl> weak_this_;
   scoped_refptr<base::SequencedTaskRunner> callback_thread_;