Implemented multisampling control in software rendering list. Move prelimina...

chrome/browser/resources/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:
 // "os", "vendor_id", "device_id", "driver_version", and "blacklist".
 // Only "blacklist" is mandatory.
 // 1. "os" contains "type" and an optional "version". "type" could be "macosx",
 //    "linux", "win", or "any".  "any" is the same as not specifying "os".
 //    "version" is a VERSION structure (defined below).
 // 2. "vendor_id" has the value of a string.
 // 3. "device_id" has the value of a string.
 // 4. "driver_vendor" is a STRING structure (defined below).
 // 5. "driver_version" is a VERSION structure (defined below).
 // 6. "driver_date" is a VERSION structure (defined below).
 //    The version is interpreted as "year.month.day".
 // 7. "gl_renderer" is a STRING structure (defined below).
 // 8: "Exceptions" is a list of entries.
 // 9. "blacklist" is a list of gpu feature strings, valid values include
-//    "accelerated_2d_canvas", "accelerated_compositing", "webgl", and "all".
-//    Currently whatever feature is selected, the effect is the same as "all",
-//    i.e., it's not supported to turn off one GPU feature and not the others.
+//    "accelerated_2d_canvas", "accelerated_compositing", "webgl",
+//    "multisampling", and "all".
 //
 // 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, ect.
 //
 // STRING includes "op" and "value".  "op" can be any of the following values:
 // "contains", "beginwith", "endwith", "=".  "value" is a string.
 
 {
@@ skipping 185 matching lines @@
       "driver_version": {
         "op": "<",
         "number": "6.14.10.5294"
       },
       "blacklist": [
         "all"
       ]
     }
   ]
 }