GLImage::OnMemoryDump Stubs + Some Impls

ui/gl/gl_image_shared_memory.h

Index: ui/gl/gl_image_shared_memory.h
diff --git a/ui/gl/gl_image_shared_memory.h b/ui/gl/gl_image_shared_memory.h
index 231675b714185638ac4b4bbb203db6244a37f631..d9233cb1fc38584e84ba55fa379f8145b0229f65 100644
--- a/ui/gl/gl_image_shared_memory.h
+++ b/ui/gl/gl_image_shared_memory.h
@@ -20,12 +20,16 @@ class GL_EXPORT GLImageSharedMemory : public GLImageMemory {
 
   // Overridden from GLImage:
   void Destroy(bool have_context) override;
+  void OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd,
+                    uint64_t process_tracing_id,
+                    const std::string& dump_name) override;
 
  protected:
   ~GLImageSharedMemory() override;
 
  private:
   scoped_ptr<base::SharedMemory> shared_memory_;
+  gfx::GenericSharedMemoryId shared_memory_id_;
 
   DISALLOW_COPY_AND_ASSIGN(GLImageSharedMemory);
 };