Reduce string copies in GURL creation

components/html_viewer/blink_platform_impl.cc

 // Copyright 2014 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 "components/html_viewer/blink_platform_impl.h"
 
 #include <cmath>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 16 matching lines @@
 #include "components/scheduler/child/webthread_impl_for_worker_scheduler.h"
 #include "components/scheduler/renderer/renderer_scheduler.h"
 #include "components/scheduler/renderer/webthread_impl_for_renderer_scheduler.h"
 #include "mojo/common/user_agent.h"
 #include "mojo/shell/public/cpp/application_impl.h"
 #include "mojo/shell/public/cpp/connect.h"
 #include "net/base/data_url.h"
 #include "net/base/ip_address_number.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
+#include "third_party/WebKit/public/platform/URLConversion.h"
 #include "third_party/WebKit/public/platform/WebWaitableEvent.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/events/gestures/blink/web_gesture_curve_impl.h"
 #include "url/gurl.h"
 
 namespace html_viewer {
 namespace {
 
 // Allows overriding user agent scring.
 const char kUserAgentSwitch[] = "user-agent";
@@ skipping 114 matching lines @@
   return createOffscreenGraphicsContext3D(attributes, share_context, &gl_info);
 }
 
 blink::WebGraphicsContext3D*
 BlinkPlatformImpl::createOffscreenGraphicsContext3D(
     const blink::WebGraphicsContext3D::Attributes& attributes,
     blink::WebGraphicsContext3D* share_context,
     blink::WebGraphicsContext3D::WebGraphicsInfo* gl_info) {
   // TODO(penghuang): Use the app from the right HTMLDocument.
   return WebGraphicsContext3DCommandBufferImpl::CreateOffscreenContext(
-      global_state_, app_, GURL(attributes.topDocumentURL), attributes,
-      share_context, gl_info);
+      global_state_, app_, blink::WebStringToGURL(attributes.topDocumentURL),
+      attributes, share_context, gl_info);
 }
 
 blink::WebGraphicsContext3D*
 BlinkPlatformImpl::createOffscreenGraphicsContext3D(
     const blink::WebGraphicsContext3D::Attributes& attributes) {
   return createOffscreenGraphicsContext3D(attributes, nullptr, nullptr);
 }
 
 blink::WebGraphicsContext3DProvider*
 BlinkPlatformImpl::createSharedOffscreenGraphicsContext3DProvider() {
@@ skipping 118 matching lines @@
 BlinkPlatformImpl::notificationManager() {
   return &web_notification_manager_;
 }
 
 void BlinkPlatformImpl::UpdateWebThreadTLS(blink::WebThread* thread) {
   DCHECK(!current_thread_slot_.Get());
   current_thread_slot_.Set(thread);
 }
 
 }  // namespace html_viewer