WebGL: GL_RGB emulation for IOSurface backed textures. [For reference only]

gpu/command_buffer/service/texture_definition.cc

Index: gpu/command_buffer/service/texture_definition.cc
diff --git a/gpu/command_buffer/service/texture_definition.cc b/gpu/command_buffer/service/texture_definition.cc
index f8346c0339ddd327d09db907e14510f30fbd3ec6..007c230dd57ffedaf64dbfb0d8aa6d5c71ca1b73 100644
--- a/gpu/command_buffer/service/texture_definition.cc
+++ b/gpu/command_buffer/service/texture_definition.cc
@@ -54,6 +54,7 @@ class GLImageSync : public gl::GLImage {
   void OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd,
                     uint64_t process_tracing_id,
                     const std::string& dump_name) override;
+  bool EmulatingRGB() const override;
 
  protected:
   ~GLImageSync() override;
@@ -122,6 +123,10 @@ void GLImageSync::OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd,
   // TODO(ericrk): Implement GLImage OnMemoryDump. crbug.com/514914
 }
 
+bool GLImageSync::EmulatingRGB() const {
+  return false;
+}
+
 #if !defined(OS_MACOSX)
 class NativeImageBufferEGL : public NativeImageBuffer {
  public: