Disable accelerated 2d canvas on Windows where perf.overall < 3.5

gpu/software_rendering_list/software_rendering_list.json

 // Determines whether certain gpu-related features are blacklisted or not.
 // A valid software_rendering_list.json file are in the format of
 // {
 //   "version": "x.y",
 //   "entries": [
 //     { // entry 1
 //     },
 //     ...
 //     { // entry n
 //     }
 //   ]
 // }
 //
 // Each entry contains the following fields (fields are optional unless
 // specifically described as mandatory below):
 // 1. "id" is an integer.  0 is reserved.  This field is mandatory.
 // 2. "os" contains "type" and an optional "version". "type" could be "macosx",
 //    "linux", "win", "chromeos", or "any".  "any" is the same as not specifying
 //    "os".
 //    "version" is a VERSION structure (defined below).
 // 3. "vendor_id" is a string.  0 is reserved.
 // 4. "device_id" is an array of strings.  0 is reserved.
 // 5. "driver_vendor" is a STRING structure (defined below).
 // 6. "driver_version" is a VERSION structure (defined below).
 // 7. "driver_date" is a VERSION structure (defined below).
 //    The version is interpreted as "year.month.day".
 // 8. "gl_vendor" is a STRING structure (defined below).
 // 9. "gl_renderer" is a STRING structure (defined below).
-// 10: "exceptions" is a list of entries.
-// 11. "blacklist" is a list of gpu feature strings, valid values include
+// 10. "perf_graphics" is a FLOAT structure (defined below).
+// 11. "perf_gaming" is a FLOAT structure (defined below).
+// 12. "perf_overall" is a FLOAT structure (defined below).
+// 13. "exceptions" is a list of entries.
+// 14. "blacklist" is a list of gpu feature strings, valid values include
 //     "accelerated_2d_canvas", "accelerated_compositing", "webgl",
 //     "multisampling", and "all".
 //     This field is mandatory.
-// 12. "description" has the description of the entry.
-// 13. "webkit_bugs" is an array of associated webkit bug numbers.
-// 14. "cr_bugs" is an array of associated webkit bug numbers.
-// 15. "browser_version" is a VERSION structure (defined below).  If this
+// 15. "description" has the description of the entry.
+// 16. "webkit_bugs" is an array of associated webkit bug numbers.
+// 17. "cr_bugs" is an array of associated webkit bug numbers.
+// 18. "browser_version" is a VERSION structure (defined below).  If this
 //     condition is not satisfied, the entry will be ignored.  If it is not
 //     present, then the entry applies to all versions of the browser.
-// 16. "disabled" is a boolean. If it is present, the entry will be skipped.
+// 19. "disabled" is a boolean. If it is present, the entry will be skipped.
 //     This can not be used in exceptions.
 //
 // VERSION includes "op" "number", and "number2".  "op" can be any of the
 // following values: "=", "<", "<=", ">", ">=", "any", "between".  "number2" is
 // only used if "op" is "between".  "number" is used for all "op" values except
 // "any". "number" and "number2" are in the format of x, x.x, x.x.x, etc.
 //
 // STRING includes "op" and "value".  "op" can be any of the following values:
 // "contains", "beginwith", "endwith", "=".  "value" is a string.
+//
+// FLOAT includes "op" "number", and "number2".  "op" can be any of the
+// following values: "=", "<", "<=", ">", ">=", "any", "between".  "number2" is
+// only used if "op" is "between".  "number" is used for all "op" values except
+// "any". "number" and "number2" are valid float numbers.
 
 {
   "name": "software rendering list",
   // Please update the version number whenever you change this file.
   "version": "1.25",
   "entries": [
     {
       "id": 1,
       "description": "ATI Radeon X1900 is not compatible with WebGL on the Mac.",
       "webkit_bugs": [47028],
@@ skipping 408 matching lines @@
       "description": "Sis Mirage 3 Graphics is not compatible.",
       "cr_bugs": [108449],
       "os": {
         "type": "win"
       },
       "vendor_id": "0x1039",
       "device_id": ["0x6351"],
       "blacklist": [
         "all"
       ]
+    },
+    {
+      "id": 32,
+      "description": "Accelerated 2d canvas is disabled on Windows systems with low perf stats.",
+      "cr_bugs": [116350],
+      "os": {
+        "type": "win"
+      },
+      "perf_overall": {
+        "op": "<",
+        "number": "3.5"
+      },
+      "blacklist": [
+        "accelerated_2d_canvas"
+      ]
     }
   ]
 }