Turn on impl-side painting when --enable-bleeding-edge-rendering-fast-paths is true.

BUG=364934

Review URL: https://codereview.chromium.org/253153002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@267089 0039d316-1c4b-4281-b951-d872f2087c98

content/browser/gpu/compositor_util.cc

@@ -200,6 +200,9 @@ bool IsImplSidePaintingEnabled() {
     return false;
   else if (command_line.HasSwitch(switches::kEnableImplSidePainting))
     return true;
+  else if (command_line.HasSwitch(
+      switches::kEnableBleedingEdgeRenderingFastPaths))
+    return true;
 
   return IsThreadedCompositingEnabled();
 }