Replacing const by value return values into const by ref in chrome/browser/ui/

chrome/browser/ui/browser_instant_controller_unittest.cc

 // Copyright 2013 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 <string>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_vector.h"
 #include "base/metrics/field_trial.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 68 matching lines @@
         num_reloads_(0) {}
 
   void DidStartNavigationToPendingEntry(
       const GURL& url,
       content::NavigationController::ReloadType reload_type) override {
     if (url_ == url)
       num_reloads_++;
     current_url_ = url;
   }
 
-  const GURL url() const {
-    return url_;
-  }
+  const GURL& url() const { return url_; }
 
-  const GURL current_url() const {
-    return contents_->GetURL();
-  }
+  const GURL& current_url() const { return contents_->GetURL(); }
 
   int num_reloads() const {
     return num_reloads_;
   }
 
   bool can_go_back() const {
     return contents_->GetController().CanGoBack();
   }
 
  protected:
@@ skipping 114 matching lines @@
 
   browser.reset(NULL);
   window.reset(NULL);
   EXPECT_FALSE(IsInstantServiceObserver(bic))
     << "New BrowserInstantController should register as InstantServiceObserver";
 }
 
 }  // namespace
 
 }  // namespace chrome