Build third-party code with -Wall, build chromium_code with -Wextra on Linux

chrome/browser/android/offline_pages/offline_page_utils.cc

 // Copyright 2015 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/browser/android/offline_pages/offline_page_utils.h"
 
 #include "base/strings/string_piece.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/android/offline_pages/offline_page_mhtml_archiver.h"
 #include "chrome/browser/android/offline_pages/offline_page_model_factory.h"
@@ skipping 104 matching lines @@
 // static
 bool OfflinePageUtils::HasOfflinePageForOnlineURL(
     content::BrowserContext* browser_context,
     const GURL& online_url) {
   const offline_pages::OfflinePageItem* offline_page =
       GetOfflinePageForOnlineURL(browser_context, online_url);
   return offline_page && !offline_page->file_path.empty();
 }
 
 // static
-const bool OfflinePageUtils::HasOfflinePages(
+bool OfflinePageUtils::HasOfflinePages(
     content::BrowserContext* browser_context) {
   DCHECK(browser_context);
 
   if (!offline_pages::IsOfflinePagesEnabled())
     return false;
 
   offline_pages::OfflinePageModel* offline_page_model =
       offline_pages::OfflinePageModelFactory::GetForBrowserContext(
           browser_context);
   return offline_page_model->HasOfflinePages();
 }
 
 }  // namespace offline_pages