gpu: Add CHROMIUM_copy_image extension.

gpu/command_buffer/client/gles2_interface_stub_autogen.h

Index: gpu/command_buffer/client/gles2_interface_stub_autogen.h
diff --git a/gpu/command_buffer/client/gles2_interface_stub_autogen.h b/gpu/command_buffer/client/gles2_interface_stub_autogen.h
index a3eca627ec517eca7c4a47dd8925328ed33486da..910114a16c938105b14ea7af4fb730a1b94a898b 100644
--- a/gpu/command_buffer/client/gles2_interface_stub_autogen.h
+++ b/gpu/command_buffer/client/gles2_interface_stub_autogen.h
@@ -713,6 +713,16 @@ void BindTexImage2DCHROMIUM(GLenum target,
                             GLint imageId,
                             GLint fenceId) override;
 void ReleaseTexImage2DCHROMIUM(GLenum target, GLint imageId) override;
+void CopyImageSubDataCHROMIUM(GLint source_image_id,
+                              GLint dest_texture_id,
+                              GLint xoffset,
+                              GLint yoffset,
+                              GLint x,
+                              GLint y,
+                              GLsizei width,
+                              GLsizei height,
+                              GLint in_fence_id,
+                              GLint out_fence_id) override;
 void TraceBeginCHROMIUM(const char* category_name,
                         const char* trace_name) override;
 void TraceEndCHROMIUM() override;