Webgl Info should have vendorid and deviceid of gpu.

Source/core/html/canvas/WebGLRenderingContextBase.cpp

Index: Source/core/html/canvas/WebGLRenderingContextBase.cpp
diff --git a/Source/core/html/canvas/WebGLRenderingContextBase.cpp b/Source/core/html/canvas/WebGLRenderingContextBase.cpp
index 46909bd6b222a9c227fd47110fb23eff5dbb762c..40ae94a11f21fbde0d01a26e46a384033b7d990d 100644
--- a/Source/core/html/canvas/WebGLRenderingContextBase.cpp
+++ b/Source/core/html/canvas/WebGLRenderingContextBase.cpp
@@ -602,15 +602,17 @@ PassOwnPtr<blink::WebGraphicsContext3D> WebGLRenderingContextBase::createWebGrap
         shouldFailContextCreationForTesting = false;
         String statusMessage;
         if (!glInfo.contextInfoCollectionFailure.isEmpty()) {
-            statusMessage.append("Could not create a WebGL context.");
+            statusMessage.append("Could not create a WebGL context. ");
             statusMessage.append(glInfo.contextInfoCollectionFailure);
+            statusMessage.append("VendorId = " + String::number(glInfo.vendorId));
+            statusMessage.append(", DriverId = " + String::number(glInfo.deviceId));

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

DeviceId, not DriverId

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

Done.

         } else {
             statusMessage.append("Could not create a WebGL context");
             if (!glInfo.vendorInfo.isEmpty()) {
-                statusMessage.append(" VendorInfo = ");
+                statusMessage.append(", VendorInfo = ");
                 statusMessage.append(glInfo.vendorInfo);
             } else {
-                statusMessage.append(" VendorInfo = Not Available");
+                statusMessage.append(", VendorInfo = Not Available");
             }
             if (!glInfo.rendererInfo.isEmpty()) {
                 statusMessage.append(", RendererInfo = ");