Add a command-line flag to disable canvas antialiasing. This will be used to characterize performa…

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 31 matching lines @@
 
 // Disables client-visible 3D APIs, in particular WebGL and Pepper 3D.
 // This is controlled by policy and is kept separate from the other
 // enable/disable switches to avoid accidentally regressing the policy
 // support for controlling access to these APIs.
 const char kDisable3DAPIs[]                 = "disable-3d-apis";
 
 // Disable gpu-accelerated 2d canvas.
 const char kDisableAccelerated2dCanvas[]    = "disable-accelerated-2d-canvas";
 
+// Disable antialiasing on 2d canvas.
+const char kDisable2dCanvasAntialiasing[]   = "disable-canvas-aa";
+
 // Disables accelerated compositing.
 const char kDisableAcceleratedCompositing[] = "disable-accelerated-compositing";
 
 // Disables the hardware acceleration of 3D CSS and animation.
 const char kDisableAcceleratedLayers[]      = "disable-accelerated-layers";
 
 // Disables the hardware acceleration of plugins.
 const char kDisableAcceleratedPlugins[]     = "disable-accelerated-plugins";
 
 // Disables GPU accelerated video display.
@@ skipping 699 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