Disable GL_EXT_multisampled_render_to_texture on Chromecast

WebGL render to texture is broken (random visual artifacts) on Chromecast.
Disabling this extension appears to fix the problem.

BUG= 489871

Review URL: https://codereview.chromium.org/1142273003

Cr-Commit-Position: refs/heads/master@{#330671}

gpu/config/gpu_driver_bug_list_json.cc

@@ -19,7 +19,7 @@ const char kGpuDriverBugListJson[] = LONG_STRING_CONST(
 {
   "name": "gpu driver bug list",
   // Please update the version number whenever you change this file.
-  "version": "8.03",
+  "version": "8.04",
   "entries": [
     {
       "id": 1,
@@ -1339,6 +1339,19 @@ LONG_STRING_CONST(
       "disabled_extensions": [
         "GL_EXT_disjoint_timer_query"
       ]
+    },
+    {
+      "id": 114,
+      "cr_bugs": [489871],
+      "description": "Vivante GC1000 support of EXT_multisampled_render_to_texture is buggy",
+      "os": {
+        "type": "linux"
+      },
+      "gl_vendor": "Vivante Corporation",
+      "gl_renderer": "Vivante GC1000",
+      "features": [
+        "disable_multisampled_render_to_texture"
+      ]
     }
   ]
 }