Add flag to enable antialiased clipping in HTML5 canvas

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 48ab143cab065e76df3f4342a9bdd132a66dfd07..b6d999d3a3f8c3fa1163e17ff26148d733ef7a00 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -278,6 +278,9 @@ const char kDisableZeroCopy[]               = "disable-zero-copy";
 // based tests.
 const char kDomAutomationController[]       = "dom-automation";
 
+// Enable antialiasing on 2d canvas clips (as opposed to draw operations)
+const char kEnable2dCanvasClipAntialiasing[] = "enable-canvas-clip-aa";

[Justin Novosad, 2014/10/14 14:21:50]

Nit: command line flags that affect the 2d rendering context usually have
"-2d-canvas" in the name.

[robertphillips, 2014/10/16 13:33:23]

Done.

+
 // Enable partially decoding jpeg images using the GPU.
 // At least YUV decoding will be accelerated when using this flag.
 // Has no effect unless GPU rasterization is enabled.