Blacklist EXT_draw_buffers on Mac NVIDIA GeForce GT 650M.

content/browser/gpu/gpu_driver_bug_list.json

 // Determines whether a certain driver bug exists in the current system.
 // A valid gpu_driver_bug_list.json file are in the format of
 // {
 //   "version": "x.y",
 //   "entries": [
 //     { // entry 1
 //     },
 //     ...
 //     { // entry n
 //     }
@@ skipping 73 matching lines @@
 //
 // FLOAT includes "op" "value", and "value2".  "op" can be any of the
 // following values: "=", "<", "<=", ">", ">=", "any", "between".  "value2" is
 // only used if "op" is "between".  "value" is used for all "op" values except
 // "any". "value" and "value2" are valid float numbers.
 // INT is very much like FLOAT, except that the values need to be integers.
 
 {
   "name": "gpu driver bug list",
   // Please update the version number whenever you change this file.
-  "version": "1.1",
+  "version": "1.2",
   "entries": [
     {
       "id": 1,
       "description": "Imagination driver doesn't like uploading lots of buffer data constantly",
       "os": {
         "type": "android"
       },
       "gl_vendor": {
         "op": "beginwith",
         "value": "Imagination"
@@ skipping 194 matching lines @@
       "os": {
         "type": "android"
       },
       "gl_vendor": {
         "op": "beginwith",
         "value": "Qualcomm"
       },
       "features": [
         "disable_depth_texture"
       ]
+    },
+    {
+      "id": 18,

[Ken Russell (switch to Gerrit), 2013/04/05 23:54:37]

Please add a description. "Disable EXT_draw_buffers on GeForce GT 650M on Mac OS
X due to driver bugs."

+      "os": {
+        "type": "macosx"
+      },
+      "vendor_id": "0x10de",
+      "device_id": ["0x0fd5"],
+      "multi_gpu_category": "any",
+      "features": [
+        "disable_ext_draw_buffers"
+      ]
     }
   ]
 }