Bug 711656 - Fix bug in D2D blocklisting check - no review

Two-fold bug:
 - d2dDisabled was set there, only to be overwritten below at line 432
 - d2dBlocked was only set there for certain status values, should have been set for any status != NO_INFO.

See https://bugzilla.mozilla.org/show_bug.cgi?id=711656#c85

gfx/thebes/gfxWindowsPlatform.cpp

@@ -419,12 +419,7 @@ gfxWindowsPlatform::UpdateRenderMode()
         PRInt32 status;
         if (NS_SUCCEEDED(gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_DIRECT2D, &status))) {
             if (status != nsIGfxInfo::FEATURE_NO_INFO) {
-                d2dDisabled = true;
-                if (status == nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION ||
-                    status == nsIGfxInfo::FEATURE_BLOCKED_DEVICE)
-                {
-                    d2dBlocked = true;
-                }
+                d2dBlocked = true;
             }
         }
     }