Issue 71980: Extensions code should use UTF-16 for user-visible Unicode strings

chrome/browser/download/download_browsertest.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 "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/path_service.h"
@@ skipping 207 matching lines @@
  public:
   MockAbortExtensionInstallUI() : ExtensionInstallUI(NULL) {}
 
   // Simulate a user abort on an extension installation.
   virtual void ConfirmInstall(Delegate* delegate, const Extension* extension) {
     delegate->InstallUIAbort(true);
     MessageLoopForUI::current()->Quit();
   }
 
   virtual void OnInstallSuccess(const Extension* extension, SkBitmap* icon) {}
-  virtual void OnInstallFailure(const std::string& error) {}
+  virtual void OnInstallFailure(const string16& error) {}
 };
 
 // Mock that simulates a permissions dialog where the user allows
 // installation.
 class MockAutoConfirmExtensionInstallUI : public ExtensionInstallUI {
  public:
   explicit MockAutoConfirmExtensionInstallUI(Profile* profile)
       : ExtensionInstallUI(profile) {}
 
   // Proceed without confirmation prompt.
   virtual void ConfirmInstall(Delegate* delegate, const Extension* extension) {
     delegate->InstallUIProceed();
   }
 
   virtual void OnInstallSuccess(const Extension* extension, SkBitmap* icon) {}
-  virtual void OnInstallFailure(const std::string& error) {}
+  virtual void OnInstallFailure(const string16& error) {}
 };
 
 static DownloadManager* DownloadManagerForBrowser(Browser* browser) {
   return DownloadServiceFactory::GetForProfile(browser->profile())
       ->GetDownloadManager();
 }
 
 }  // namespace
 
 // While an object of this class exists, it will mock out download
@@ skipping 1474 matching lines @@
 
   // Check state.
   EXPECT_EQ(1, browser()->tab_count());
   ASSERT_TRUE(CheckDownloadFullPaths(browser(),
                                      target_file_full_path,
                                      OriginFile(file)));
 
   // Temporary downloads won't be visible.
   CheckDownloadUI(browser(), false, false, file);
 }