[EXPERIMENT] Revert "Route D3D VSync signal to Compositor"

content/browser/compositor/gpu_browser_compositor_output_surface.h

Index: content/browser/compositor/gpu_browser_compositor_output_surface.h
diff --git a/content/browser/compositor/gpu_browser_compositor_output_surface.h b/content/browser/compositor/gpu_browser_compositor_output_surface.h
index 1212ccd0e2739d53d19024b7145659bdf7935bc5..e47ed3b8fe9eb95e003e9bb933cb856d0c379a70 100644
--- a/content/browser/compositor/gpu_browser_compositor_output_surface.h
+++ b/content/browser/compositor/gpu_browser_compositor_output_surface.h
@@ -11,7 +11,6 @@
 #include "base/memory/weak_ptr.h"
 #include "build/build_config.h"
 #include "content/browser/compositor/browser_compositor_output_surface.h"
-#include "content/browser/compositor/gpu_vsync_begin_frame_source.h"
 #include "ui/gfx/swap_result.h"
 
 namespace display_compositor {
@@ -34,8 +33,8 @@ class ReflectorTexture;
 // Adapts a WebGraphicsContext3DCommandBufferImpl into a
 // cc::OutputSurface that also handles vsync parameter updates
 // arriving from the GPU process.
-class GpuBrowserCompositorOutputSurface : public BrowserCompositorOutputSurface,
-                                          public GpuVSyncControl {
+class GpuBrowserCompositorOutputSurface
+    : public BrowserCompositorOutputSurface {
  public:
   GpuBrowserCompositorOutputSurface(
       scoped_refptr<ui::ContextProviderCommandBuffer> context,
@@ -78,9 +77,6 @@ class GpuBrowserCompositorOutputSurface : public BrowserCompositorOutputSurface,
   bool SurfaceIsSuspendForRecycle() const override;
   void SetDrawRectangle(const gfx::Rect& rect) override;
 
-  // GpuVSyncControl implementation.
-  void SetNeedsVSync(bool needs_vsync) override;
-
  protected:
   gpu::CommandBufferProxyImpl* GetCommandBufferProxy();