Add --disable-swiftshader and about:flags entry to disable swiftshader


BUG=
TEST=


Review URL: http://codereview.chromium.org/9188023

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@118146 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index d7eb3646..d5efe19 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -532,6 +532,17 @@
     kOsAll,
     SINGLE_VALUE_TYPE(switches::kEnableRestoreSessionState)
   },
+  {
+    "disable-software-rasterizer",
+    IDS_FLAGS_DISABLE_SOFTWARE_RASTERIZER_NAME,
+    IDS_FLAGS_DISABLE_SOFTWARE_RASTERIZER_DESCRIPTION,
+#if defined(ENABLE_SWIFTSHADER)
+    kOsAll,
+#else
+    0,
+#endif
+    SINGLE_VALUE_TYPE(switches::kDisableSoftwareRasterizer)
+  },
 };
 
 const Experiment* experiments = kExperiments;