[Android WebView] Implement Ubercomp for Render Thread support

android_webview/common/aw_switches.h

Index: android_webview/common/aw_switches.h
diff --git a/components/feedback/feedback_switches.cc b/android_webview/common/aw_switches.h
similarity index 51%
copy from components/feedback/feedback_switches.cc
copy to android_webview/common/aw_switches.h
index 74f1bec27ce1771c7f207378af34e8a76c4167cf..3e9c378f9e61ce9d21cb2f807274a533df280d8c 100644
--- a/components/feedback/feedback_switches.cc
+++ b/android_webview/common/aw_switches.h
@@ -2,12 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "components/feedback/feedback_switches.h"
+#ifndef ANDROID_WEBVIEW_COMMON_AW_SWITCHES_H_
+#define ANDROID_WEBVIEW_COMMON_AW_SWITCHES_H_
 
 namespace switches {
 
-// Alternative feedback server to use when submitting user feedback
-const char kFeedbackServer[]                = "feedback-server";
+extern const char kEnableUbercomp[];
+
+bool UbercompEnabled();
 
 }  // namespace switches
 
+#endif  // ANDROID_WEBVIEW_COMMON_AW_SWITCHES_H_