Created min size for print preview dialog and modified to allow the

chrome/test/base/testing_browser_process.h

 // 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.
 
 // An implementation of BrowserProcess for unit tests that fails for most
 // services. By preventing creation of services, we reduce dependencies and
 // keep the profile clean. Clients of this class must handle the NULL return
 // value, however.
 
 #ifndef CHROME_TEST_BASE_TESTING_BROWSER_PROCESS_H_
@@ skipping 131 matching lines @@
   void SetRulesetService(
       std::unique_ptr<subresource_filter::RulesetService> ruleset_service);
   void SetSystemRequestContext(net::URLRequestContextGetter* context_getter);
   void SetNotificationUIManager(
       std::unique_ptr<NotificationUIManager> notification_ui_manager);
   void SetNotificationPlatformBridge(
       std::unique_ptr<NotificationPlatformBridge> notification_platform_bridge);
   void SetRapporService(rappor::RapporService* rappor_service);
   void SetShuttingDown(bool is_shutting_down);
   void ShutdownBrowserPolicyConnector();
+  void SetPrintPreviewDialogController(
+      printing::PrintPreviewDialogController* controller);
 
  private:
   // See CreateInstance() and DestoryInstance() above.
   TestingBrowserProcess();
   ~TestingBrowserProcess() override;
 
   std::unique_ptr<content::NotificationService> notification_service_;
   std::string app_locale_;
   bool is_shutting_down_;
 
@@ skipping 61 matching lines @@
 class TestingBrowserProcessInitializer {
  public:
   TestingBrowserProcessInitializer();
   ~TestingBrowserProcessInitializer();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TestingBrowserProcessInitializer);
 };
 
 #endif  // CHROME_TEST_BASE_TESTING_BROWSER_PROCESS_H_