don't let weburl_loader_mock fallback for non-data urls

webkit/support/weburl_loader_mock.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "webkit/support/weburl_loader_mock.h"
 
 #include "base/logging.h"
 #include "third_party/WebKit/public/platform/WebData.h"
 #include "third_party/WebKit/public/platform/WebURLError.h"
 #include "third_party/WebKit/public/platform/WebURLLoaderClient.h"
@@ skipping 40 matching lines @@
 }
 
 void WebURLLoaderMock::loadSynchronously(const WebKit::WebURLRequest& request,
                                          WebKit::WebURLResponse& response,
                                          WebKit::WebURLError& error,
                                          WebKit::WebData& data) {
   if (factory_->IsMockedURL(request.url())) {
     factory_->LoadSynchronously(request, &response, &error, &data);
     return;
   }
+  DCHECK(static_cast<const GURL&>(request.url()).SchemeIs("data"))

[jamesr, 2013/06/20 04:36:21]

oh C++. you so silly

+      << "loadSynchronously shouldn't be falling back: "
+      << request.url().spec().data();
   using_default_loader_ = true;
   default_loader_->loadSynchronously(request, response, error, data);
 }
 
 void WebURLLoaderMock::loadAsynchronously(const WebKit::WebURLRequest& request,
                                           WebKit::WebURLLoaderClient* client) {
   if (factory_->IsMockedURL(request.url())) {
     client_ = client;
     factory_->LoadAsynchronouly(request, this);
     return;
   }
+  DCHECK(static_cast<const GURL&>(request.url()).SchemeIs("data"))
+      << "loadAsynchronously shouldn't be falling back: "
+      << request.url().spec().data();
   using_default_loader_ = true;
   default_loader_->loadAsynchronously(request, client);
 }
 
 void WebURLLoaderMock::cancel() {
   if (using_default_loader_) {
     default_loader_->cancel();
     return;
   }
   client_ = NULL;
   factory_->CancelLoad(this);
 }
 
 void WebURLLoaderMock::setDefersLoading(bool deferred) {
   is_deferred_ = deferred;
   if (using_default_loader_) {
     default_loader_->setDefersLoading(deferred);
     return;
   }
   NOTIMPLEMENTED();
 }