cc: Use HighResNow as timebase if it is fast and reliable

ui/compositor/compositor.cc

Index: ui/compositor/compositor.cc
diff --git a/ui/compositor/compositor.cc b/ui/compositor/compositor.cc
index 6266f00cbb0522b70057d3b03ed75b47ac083f99..64749bcbb2eb1960d10758d14d61390f65047728 100644
--- a/ui/compositor/compositor.cc
+++ b/ui/compositor/compositor.cc
@@ -31,6 +31,7 @@
 #include "ui/compositor/dip_util.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/reflector.h"
+#include "ui/gfx/frame_time.h"
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_surface.h"
@@ -552,7 +553,7 @@ void Compositor::Terminate() {
 
 void Compositor::ScheduleDraw() {
   if (g_compositor_thread) {
-    host_->Composite(base::TimeTicks::Now());
+    host_->Composite(gfx::FrameTime::Now());
   } else if (!defer_draw_scheduling_) {
     defer_draw_scheduling_ = true;
     base::MessageLoop::current()->PostTask(
@@ -600,7 +601,7 @@ void Compositor::Draw() {
     // TODO(nduca): Temporary while compositor calls
     // compositeImmediately() directly.
     Layout();
-    host_->Composite(base::TimeTicks::Now());
+    host_->Composite(gfx::FrameTime::Now());
 
 #if defined(OS_WIN)
     // While we resize, we are usually a few frames behind. By blocking