Decouple BrowserCompositorOutputSurface from BeginFrameSource.

content/browser/compositor/browser_compositor_output_surface.cc

Index: content/browser/compositor/browser_compositor_output_surface.cc
diff --git a/content/browser/compositor/browser_compositor_output_surface.cc b/content/browser/compositor/browser_compositor_output_surface.cc
index b93b865efe759fa4788091c0b7df3c096926a9b8..3d7943197f9b7dea71a007a418ee3a9c490da2b7 100644
--- a/content/browser/compositor/browser_compositor_output_surface.cc
+++ b/content/browser/compositor/browser_compositor_output_surface.cc
@@ -22,34 +22,27 @@ namespace content {
 BrowserCompositorOutputSurface::BrowserCompositorOutputSurface(
     scoped_refptr<cc::ContextProvider> context_provider,
     scoped_refptr<ui::CompositorVSyncManager> vsync_manager,
-    cc::SyntheticBeginFrameSource* begin_frame_source,
     std::unique_ptr<display_compositor::CompositorOverlayCandidateValidator>
         overlay_candidate_validator)
     : OutputSurface(std::move(context_provider)),
       vsync_manager_(std::move(vsync_manager)),
-      synthetic_begin_frame_source_(begin_frame_source),
       reflector_(nullptr) {
   overlay_candidate_validator_ = std::move(overlay_candidate_validator);
 }
 
 BrowserCompositorOutputSurface::BrowserCompositorOutputSurface(
     std::unique_ptr<cc::SoftwareOutputDevice> software_device,
-    const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager,
-    cc::SyntheticBeginFrameSource* begin_frame_source)
+    const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager)
     : OutputSurface(std::move(software_device)),
       vsync_manager_(vsync_manager),
-      synthetic_begin_frame_source_(begin_frame_source),
       reflector_(nullptr) {}
 
 BrowserCompositorOutputSurface::BrowserCompositorOutputSurface(
     const scoped_refptr<cc::VulkanContextProvider>& vulkan_context_provider,
-    const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager,
-    cc::SyntheticBeginFrameSource* begin_frame_source)
+    const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager)
     : OutputSurface(std::move(vulkan_context_provider)),
       vsync_manager_(vsync_manager),
-      synthetic_begin_frame_source_(begin_frame_source),
-      reflector_(nullptr) {
-}
+      reflector_(nullptr) {}
 
 BrowserCompositorOutputSurface::~BrowserCompositorOutputSurface() {
   if (reflector_)
@@ -64,7 +57,6 @@ void BrowserCompositorOutputSurface::OnUpdateVSyncParametersFromGpu(
     // TODO(brianderson): We should not be receiving 0 intervals.
     interval = cc::BeginFrameArgs::DefaultInterval();
   }
-  synthetic_begin_frame_source_->OnUpdateVSyncParameters(timebase, interval);
   vsync_manager_->UpdateVSyncParameters(timebase, interval);
 }