Enable Surfaces on Android (try #3)

The browser compositor contents and renderer contents are each put into separate Surfaces which are aggregated together by a Display.

BUG=449319

Review URL: https://codereview.chromium.org/1001203002

Cr-Commit-Position: refs/heads/master@{#320826}

content/browser/gpu/compositor_util.cc

@@ -315,7 +315,7 @@ bool IsThreadedGpuRasterizationEnabled() {
 
 bool UseSurfacesEnabled() {
 #if defined(OS_ANDROID)
-  return false;
+  return true;
 #endif
   bool enabled = false;
 #if (defined(USE_AURA) && !defined(OS_CHROMEOS)) || defined(OS_MACOSX)