[Autofill] Migrate ContentPasswordManagerDriver<-->Password{Autofill,Generation}Agent IPCs to mojo.

chrome/test/base/chrome_render_view_test.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.
 
 #ifndef CHROME_TEST_BASE_CHROME_RENDER_VIEW_TEST_H_
 #define CHROME_TEST_BASE_CHROME_RENDER_VIEW_TEST_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 18 matching lines @@
   ~ChromeRenderViewTest() override;
 
  protected:
   // testing::Test
   void SetUp() override;
   void TearDown() override;
   content::ContentClient* CreateContentClient() override;
   content::ContentBrowserClient* CreateContentBrowserClient() override;
   content::ContentRendererClient* CreateContentRendererClient() override;
 
+  // Is called by SetUp() to ensure all mojo interfaces impl ready for main

[sky, 2016/08/19 15:35:50]

How about:
// Called from SetUp(). Override to register mojo interfaces.

[leonhsl(Using Gerrit), 2016/08/20 11:47:08]

Done and thanks. This got clearer!

+  // renderer frame before they are requested.
+  virtual void RegisterMainFrameRemoteInterfaces();
+
   // Initializes commonly needed global state and renderer client parts.
   // Use when overriding CreateContentRendererClient.
   void InitChromeContentRendererClient(ChromeContentRendererClient* client);
 
   void EnableUserGestureSimulationForAutofill();
   void DisableUserGestureSimulationForAutofill();
   void WaitForAutofillDidAssociateFormControl();
 
 #if defined(ENABLE_EXTENSIONS)
   std::unique_ptr<extensions::DispatcherDelegate>
       extension_dispatcher_delegate_;
 #endif
 
   autofill::TestPasswordAutofillAgent* password_autofill_agent_;
   autofill::TestPasswordGenerationAgent* password_generation_;
   autofill::AutofillAgent* autofill_agent_;
 
   // Naked pointer as ownership is with content::RenderViewTest::render_thread_.
   ChromeMockRenderThread* chrome_render_thread_;
 };
 
 #endif  // CHROME_TEST_BASE_CHROME_RENDER_VIEW_TEST_H_