Webgl Info should have vendorid and deviceid of gpu.

LayoutTests/fast/canvas/webgl/webgl-error-response.html

 <!-- This is a test for crbug.com/412440, tests meaningful information in
 WebGL context creation error message. -->
 <script src="../../../resources/js-test.js"></script>
 <canvas id="webgl-canvas" width="200" height="200" class="nomargin"></canvas>
 <script>
 function main()
 {
   if (!window.testRunner) {
     testFailed("Requires window.testRunner");
   } else {
     initTest();
   }
 }
 
 function initTest() {
   var canvas = document.getElementById("webgl-canvas");
   testRunner.forceNextWebGLContextCreationToFail();
   canvas.addEventListener("webglcontextcreationerror", onContextCreationError, false);
   var gl = canvas.getContext("webgl");
   testRunner.dumpAsText();
 }
 
 function onContextCreationError(e) {
-  var vendorInfoStr = "VendorInfo = ";
-  var renderInfoStr = "RendererInfo = ";
-  var driverInfoStr = "DriverInfo = ";
-  var stringIndex = e.statusMessage.search(vendorInfoStr) + vendorInfoStr.length;
-  var vendorInfo = e.statusMessage.substring(stringIndex, e.statusMessage.search(renderInfoStr) - 2);
-  stringIndex = e.statusMessage.search(renderInfoStr) + renderInfoStr.length;
-  var rendererInfo = e.statusMessage.substring(stringIndex, e.statusMessage.search(driverInfoStr) - 2 );
-  stringIndex = e.statusMessage.search(driverInfoStr) + driverInfoStr.length;
-  var driverInfo = e.statusMessage.substring(stringIndex, e.statusMessage.length - 1);
-  if((e.statusMessage.search("GPUInfoCollectionFailure") != -1) ||
-        vendorInfo.length > 0 ||
-        rendererInfo.length > 0 ||
-        driverInfo.length > 0)
+  var splitStatus = e.statusMessage.split(",");
+  var stringLocator = 1;
+  var status = true;
+  for (var i = 0; i < splitStatus.length; i++) {
+    var gpuInfoStr = splitStatus[i].split(" = ");
+    if (gpuInfoStr[stringLocator].length > 0)

[Ken Russell (switch to Gerrit), 2015/02/13 17:32:58]

Looking at this again I'm not sure it does what you want. It'll set "status" to
true or false depending on whether the last "key = value" pair has a non-empty
value. If you're looking for any non-empty value, then just do:

  if (gpuInfoStr[stringLocator].length == 0)
    status = false;

[sivag, 2015/02/16 15:00:18]

Done.

+      status = true;
+    else
+      status = false;
+  }
+  if(status)
     testPassed("Status message displayed for webglcontextcreationerror");
   else
     testFailed("Context creation error test failed");
 }
 main();
 </script>