Remove remaining traces of CreateGpuMemoryBufferImageCHROMIUM

gpu/command_buffer/tests/gl_manager.h

Index: gpu/command_buffer/tests/gl_manager.h
diff --git a/gpu/command_buffer/tests/gl_manager.h b/gpu/command_buffer/tests/gl_manager.h
index ce85a39d693217216f9cd65f1d6446f2591c0b5e..b4ecb3e0e886d22ec697d02b99ac87bc12940193 100644
--- a/gpu/command_buffer/tests/gl_manager.h
+++ b/gpu/command_buffer/tests/gl_manager.h
@@ -133,10 +133,6 @@ class GLManager : private GpuControl {
                       size_t height,
                       unsigned internalformat) override;
   void DestroyImage(int32_t id) override;
-  int32_t CreateGpuMemoryBufferImage(size_t width,
-                                     size_t height,
-                                     unsigned internalformat,
-                                     unsigned usage) override;
   void SignalQuery(uint32_t query, const base::Closure& callback) override;
   void SetLock(base::Lock*) override;
   void EnsureWorkVisible() override;