[Android] Fixes app crash when using both enable and disable delegated...

[Android] Fixes app crash when using both enable and disable delegated renderer command line switch.

The function UsingDelegatedRenderer should also check for command line switch
--disable-delegated-renderer's presence while determining the usage of
delegated renderer.

BUG=330714

Review URL: https://codereview.chromium.org/110913010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243428 0039d316-1c4b-4281-b951-d872f2087c98

content/browser/renderer_host/render_widget_host_view_android.cc

@@ -99,8 +99,15 @@ void CopyFromCompositingSurfaceFinished(
 }
 
 bool UsingDelegatedRenderer() {
-  return CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kEnableDelegatedRenderer);
+  bool using_delegated_renderer = false;
+
+  using_delegated_renderer |= CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnableDelegatedRenderer);
+
+  using_delegated_renderer &= !CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kDisableDelegatedRenderer);
+
+  return using_delegated_renderer;
 }
 
 }  // anonymous namespace