Decouple BrowserCompositorOutputSurface from BeginFrameSource.

content/browser/compositor/gpu_output_surface_mac.mm

Index: content/browser/compositor/gpu_output_surface_mac.mm
diff --git a/content/browser/compositor/gpu_output_surface_mac.mm b/content/browser/compositor/gpu_output_surface_mac.mm
index fda244489af7a6590025caa5e5cd3155521cc22f..9751c35be5b1eb76f6c5dd8e5522d28dd3bf7fc3 100644
--- a/content/browser/compositor/gpu_output_surface_mac.mm
+++ b/content/browser/compositor/gpu_output_surface_mac.mm
@@ -52,16 +52,14 @@ GpuOutputSurfaceMac::GpuOutputSurfaceMac(
     gfx::AcceleratedWidget widget,
     scoped_refptr<ContextProviderCommandBuffer> context,
     gpu::SurfaceHandle surface_handle,
-    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,
     gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager)
     : GpuSurfacelessBrowserCompositorOutputSurface(
           std::move(context),
           surface_handle,
-          std::move(vsync_manager),
-          begin_frame_source,
+          update_vsync_parameters_callback,
           std::move(overlay_candidate_validator),
           GL_TEXTURE_RECTANGLE_ARB,
           GL_RGBA,