cc: Remove FinishAllRendering, as it doesn't do anything anymore.

ui/compositor/compositor.cc

Index: ui/compositor/compositor.cc
diff --git a/ui/compositor/compositor.cc b/ui/compositor/compositor.cc
index 84f98314f052865b8ebac425c3a099bfbb617ad5..416fcf15012ac1d3aa93d6905b3f10117bc9f20b 100644
--- a/ui/compositor/compositor.cc
+++ b/ui/compositor/compositor.cc
@@ -342,12 +342,7 @@ void Compositor::ScheduleRedrawRect(const gfx::Rect& damage_rect) {
   host_->SetNeedsCommit();
 }
 
-void Compositor::FinishAllRendering() {
-  host_->FinishAllRendering();
-}
-
 void Compositor::DisableSwapUntilResize() {
-  host_->FinishAllRendering();
   context_factory_->ResizeDisplay(this, gfx::Size());
 }