Decouple BrowserCompositorOutputSurface from BeginFrameSource.

content/browser/compositor/offscreen_browser_compositor_output_surface.cc

Index: content/browser/compositor/offscreen_browser_compositor_output_surface.cc
diff --git a/content/browser/compositor/offscreen_browser_compositor_output_surface.cc b/content/browser/compositor/offscreen_browser_compositor_output_surface.cc
index a43de0d4d67025c143def01d424609fdbc6e24c1..b55f5d2720855f217dea48723012c5b4cc00f274 100644
--- a/content/browser/compositor/offscreen_browser_compositor_output_surface.cc
+++ b/content/browser/compositor/offscreen_browser_compositor_output_surface.cc
@@ -30,13 +30,11 @@ static cc::ResourceFormat kFboTextureFormat = cc::RGBA_8888;
 OffscreenBrowserCompositorOutputSurface::
     OffscreenBrowserCompositorOutputSurface(
         scoped_refptr<ContextProviderCommandBuffer> context,
-        scoped_refptr<ui::CompositorVSyncManager> vsync_manager,
-        cc::SyntheticBeginFrameSource* begin_frame_source,
+        const UpdateVSyncParametersCallback& update_vsync_parameters_callback,
         std::unique_ptr<display_compositor::CompositorOverlayCandidateValidator>
             overlay_candidate_validator)
     : BrowserCompositorOutputSurface(std::move(context),
-                                     std::move(vsync_manager),
-                                     begin_frame_source,
+                                     update_vsync_parameters_callback,
                                      std::move(overlay_candidate_validator)),
       weak_ptr_factory_(this) {
   capabilities_.uses_default_gl_framebuffer = false;