Tidy up Android's is-tablet functionality.

content/public/common/content_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 "content/public/common/content_switches.h"
 
 namespace switches {
 
 // By default, file:// URIs cannot read other file:// URIs. This is an
 // override for developers who need the old behavior for testing.
@@ skipping 616 matching lines @@
 
 // The prefix used when starting the zygote process. (i.e. 'gdb --args')
 const char kZygoteCmdPrefix[]               = "zygote-cmd-prefix";
 
 // Causes the process to run as a renderer zygote.
 const char kZygoteProcess[]                 = "zygote";
 
 // Enables moving cursor by word in visual order.
 const char kEnableVisualWordMovement[]      = "enable-visual-word-movement";
 
+#if defined(OS_ANDROID)
+// Set when Chromium should use a mobile user agent.
+const char kUseMobileUserAgent[] = "use-mobile-user-agent";
+#endif
+
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 // Specify the amount the trackpad should scroll by.
 const char kScrollPixels[]                  = "scroll-pixels";
 #endif
 
 #if defined(OS_MACOSX) || defined(OS_WIN)
 // Use the system SSL library (Secure Transport on Mac, SChannel on Windows)
 // instead of NSS for SSL.
 const char kUseSystemSSL[]                  = "use-system-ssl";
 #endif
@@ skipping 19 matching lines @@
 const char kDefaultTileWidth[]              = "default-tile-width";
 const char kDefaultTileHeight[]             = "default-tile-height";
 
 // Sets the width and height above which a composited layer will get tiled.
 const char kMaxUntiledLayerWidth[]          = "max-untiled-layer-width";
 const char kMaxUntiledLayerHeight[]         = "max-untiled-layer-height";
 
 const char kFixedPositionCreatesStackingContext[]
     = "fixed-position-creates-stacking-context";
 }  // namespace switches