[Android] Add a low-end device mode override flag

base/base_switches.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/base_switches.h"
 
 namespace switches {
 
 // If the program includes base/debug/debug_on_start_win.h, the process will
 // (on Windows only) start the JIT system-registered debugger on itself and
@@ skipping 43 matching lines @@
 // Sends a pretty-printed version of tracing info to the console.
 const char kTraceToConsole[]                = "trace-to-console";
 
 #if defined(OS_POSIX)
 // Used for turning on Breakpad crash reporting in a debug environment where
 // crash reporting is typically compiled but disabled.
 const char kEnableCrashReporterForTesting[] =
     "enable-crash-reporter-for-testing";
 #endif
 
+#if defined(OS_ANDROID)
+// Overrides low-end device detection, disabling low-end device optimizations.
+const char kDisableLowEndDeviceMode[]       = "disable-low-end-device-mode";
+
+// Overrides low-end device detection, enabling low-end device optimizations.
+const char kEnableLowEndDeviceMode[]        = "enable-low-end-device-mode";
+#endif
+
 }  // namespace switches