Blacklist accelerated_2d_canvas on XP.

In theory it should be disabled when can_lose_context is set to true on XP.  However, this happens in GPU process and we need it in renderer process earlier.

BUG=175149
TEST=content_unittests
TBR=senorblanco
Review URL: https://codereview.chromium.org/12212146

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@182009 0039d316-1c4b-4281-b951-d872f2087c98

content/browser/gpu/software_rendering_list.json

@@ -75,7 +75,7 @@
 {
   "name": "software rendering list",
   // Please update the version number whenever you change this file.
-  "version": "4.16",
+  "version": "4.17",
   "entries": [
     {
       "id": 1,
@@ -1012,6 +1012,21 @@
       "blacklist": [
         "force_compositing_mode"
       ]
+    },
+    {
+      "id": 67,
+      "description": "Accelerated 2D Canvas is not supported on WinXP.",
+      "cr_bugs": [175149],
+      "os": {
+        "type": "win",
+        "version": {
+          "op": "=",
+          "number": "5"
+        }
+      },
+      "blacklist": [
+        "accelerated_2d_canvas"
+      ]
     }
   ]
 }