Allow switching DirectCompositionSurfaceWin between drawing modes.

ui/gl/gl_surface_stub.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_GL_GL_SURFACE_STUB_H_
 #define UI_GL_GL_SURFACE_STUB_H_
 
 #include "ui/gl/gl_export.h"
 #include "ui/gl/gl_surface.h"
 
@@ skipping 13 matching lines @@
   void Destroy() override;
   bool Resize(const gfx::Size& size,
               float scale_factor,
               bool has_alpha) override;
   bool IsOffscreen() override;
   gfx::SwapResult SwapBuffers() override;
   gfx::Size GetSize() override;
   void* GetHandle() override;
   bool BuffersFlipped() const override;
   GLSurfaceFormat GetFormat() override;
-  bool SupportsSetDrawRectangle() const override;
+  bool SupportsDCLayers() const override;
   gfx::Vector2d GetDrawOffset() const override;
 
  protected:
   ~GLSurfaceStub() override;
 
  private:
   gfx::Size size_;
   bool buffers_flipped_ = false;
   bool supports_draw_rectangle_ = false;
 };
 
 }  // namespace gl
 
 #endif  // UI_GL_GL_SURFACE_STUB_H_