Allow 2D canvases to be GPU accelerated on linux

gpu/config/software_rendering_list_json.cc

 // Copyright (c) 2013 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.
 
 // Determines whether certain gpu-related features are blacklisted or not.
 // The format of a valid software_rendering_list.json file is defined in
 // <gpu/config/gpu_control_list_format.txt>.
 // The supported "features" can be found in <gpu/config/gpu_blacklist.cc>.
 
 #include "gpu/config/gpu_control_list_jsons.h"
@@ skipping 229 matching lines @@
       "exceptions": [
         {
           "driver_vendor": "osmesa"
         }
       ],
       "features": [
         "all"
       ]
     },
     {
-      "id": 24,
-      "description": "Accelerated 2d canvas is unstable in Linux at the moment",
-      "os": {
-        "type": "linux"
-      },
-      "exceptions": [
-        {
-          "gl_vendor": "Vivante Corporation",
-          "gl_renderer": "Vivante GC1000"
-        },
-        {
-          "gl_vendor": "ARM",
-          "gl_renderer": "Mali-4.*"
-        }
-      ],
-      "features": [
-        "accelerated_2d_canvas"
-      ]
-    },
-    {
       "id": 27,
       "description": "ATI/AMD cards with older drivers in Linux are crash-prone",
       "cr_bugs": [95934, 94973, 136240, 357314],
       "os": {
         "type": "linux"
       },
       "gl_vendor": "ATI.*",
       "exceptions": [
         {
           "driver_vendor": ".*AMD.*",
@@ skipping 968 matching lines @@
       "features": [
         "accelerated_vpx_decode"
       ]
     }
   ]
 }
 
 );  // LONG_STRING_CONST macro
 
 }  // namespace gpu