Simplify pinch flags.

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 290 matching lines @@
 
 // On Windows, converts the page to the currently-installed monitor profile.
 // This does NOT enable color management for images. The source is still
 // assumed to be sRGB.
 const char kEnableMonitorProfile[]          = "enable-monitor-profile";
 
 // Enables UI releasing handle to front surface for background tabs on platforms
 // that support it.
 const char kEnableUIReleaseFrontSurface[] = "enable-ui-release-front-surface";
 
-// Enables touch-screen pinch gestures.
+// Enables compositor-accelerated touch-screen pinch gestures.
 const char kEnablePinch[]                   = "enable-pinch";
 
+// Enables Android-style touch-screen pinch gestures.
+const char kEnableCssTransformPinch[]       = "enable-css-transform-pinch";
+
 // Enable caching of pre-parsed JS script data.  See http://crbug.com/32407.
 const char kEnablePreparsedJsCaching[]      = "enable-preparsed-js-caching";
 
 // Enable privileged WebGL extensions; without this switch such extensions are
 // available only to Chrome extensions.
 const char kEnablePrivilegedWebGLExtensions[] =
     "enable-privileged-webgl-extensions";
 
 // Aggressively free GPU command buffers belonging to hidden tabs.
 const char kEnablePruneGpuCommandBuffers[] =
@@ skipping 423 matching lines @@
     = "disable-fixed-position-creates-stacking-context";
 
 // Defer image decoding in WebKit until painting.
 const char kEnableDeferredImageDecoding[] = "enable-deferred-image-decoding";
 
 // Enables history navigation in response to horizontal overscroll.
 const char kEnableOverscrollHistoryNavigation[] =
     "enable-overscroll-history-navigation";
 
 }  // namespace switches