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

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index cf0b4db5a53c025133ba23235bde963e1cc98fc8..193cc47bbd9a409c0781e0d05a39d54d326e54e0 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -49,6 +49,9 @@ 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";