Reduce string copies in GURL creation

chrome/renderer/extensions/resource_request_policy.cc

 // Copyright (c) 2012 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 "chrome/renderer/extensions/resource_request_policy.h"
 
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/common/extensions/chrome_manifest_url_handlers.h"
 #include "chrome/common/url_constants.h"
 #include "extensions/common/constants.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/manifest_constants.h"
 #include "extensions/common/manifest_handlers/icons_handler.h"
 #include "extensions/common/manifest_handlers/web_accessible_resources_info.h"
 #include "extensions/common/manifest_handlers/webview_info.h"
 #include "extensions/renderer/dispatcher.h"
 #include "extensions/renderer/renderer_extension_registry.h"
+#include "third_party/WebKit/public/platform/URLConversion.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/web/WebConsoleMessage.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebFrame.h"
 #include "ui/base/page_transition_types.h"
 #include "url/gurl.h"
 
 namespace extensions {
 
 ResourceRequestPolicy::ResourceRequestPolicy(Dispatcher* dispatcher)
@@ skipping 38 matching lines @@
   if (!WebAccessibleResourcesInfo::IsResourceWebAccessible(
           extension, resource_url.path()) &&
       !WebviewInfo::IsResourceWebviewAccessible(
           extension, dispatcher_->webview_partition_id(),
           resource_url.path())) {
     GURL frame_url = frame->document().url();
 
     // The page_origin may be GURL("null") for unique origins like data URLs,
     // but this is ok for the checks below.  We only care if it matches the
     // current extension or has a devtools scheme.
-    GURL page_origin = GURL(frame->top()->securityOrigin().toString());
+    GURL page_origin =
+        blink::WebStringToGURL(frame->top()->securityOrigin().toString());
 
     // Exceptions are:
     // - empty origin (needed for some edge cases when we have empty origins)
     bool is_empty_origin = frame_url.is_empty();
     // - extensions requesting their own resources (frame_url check is for
     //     images, page_url check is for iframes)
     bool is_own_resource = frame_url.GetOrigin() == extension->url() ||
                            page_origin == extension->url();
     // - devtools (chrome-extension:// URLs are loaded into frames of devtools
     //     to support the devtools extension APIs)
@@ skipping 37 matching lines @@
     frame->addMessageToConsole(
         blink::WebConsoleMessage(blink::WebConsoleMessage::LevelError,
                                   blink::WebString::fromUTF8(message)));
     return false;
   }
 
   return true;
 }
 
 }  // namespace extensions