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

chrome/test/base/chrome_render_view_test.cc

 // 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.
 
 #include "chrome/test/base/chrome_render_view_test.h"
 
 #include "base/debug/leak_annotations.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
@@ skipping 93 matching lines @@
 
 void ChromeRenderViewTest::SetUp() {
   ChromeUnitTestSuite::InitializeProviders();
   ChromeUnitTestSuite::InitializeResourceBundle();
 
   chrome_render_thread_ = new ChromeMockRenderThread();
   render_thread_.reset(chrome_render_thread_);
 
   content::RenderViewTest::SetUp();
 
+  RegisterMainFrameRemoteInterfaces();

[leonhsl(Using Gerrit), 2016/08/19 10:13:38]

Because bellowing password_autofill_agent_ constructor will try to connect to
autofill::mojom::PasswordManagerDriver interface, we must register a local
interface impl before that. So I added this virtual member function.
One use case is at Line326 in
https://codereview.chromium.org/2216463002/diff/40001/chrome/renderer/autofil...

+
   // RenderFrame doesn't expose its Agent objects, because it has no need to
   // store them directly (they're stored as RenderFrameObserver*).  So just
   // create another set.
   password_autofill_agent_ =
       new autofill::TestPasswordAutofillAgent(view_->GetMainRenderFrame());
   password_generation_ =
       new autofill::TestPasswordGenerationAgent(view_->GetMainRenderFrame(),
                                                 password_autofill_agent_);
   autofill_agent_ = new NiceMock<MockAutofillAgent>(view_->GetMainRenderFrame(),
                                                     password_autofill_agent_,
@@ skipping 54 matching lines @@
 
 void ChromeRenderViewTest::DisableUserGestureSimulationForAutofill() {
   EXPECT_CALL(*(static_cast<MockAutofillAgent*>(autofill_agent_)),
               IsUserGesture()).WillRepeatedly(Return(false));
 }
 
 void ChromeRenderViewTest::WaitForAutofillDidAssociateFormControl() {
   static_cast<MockAutofillAgent*>(autofill_agent_)
       ->WaitForAutofillDidAssociateFormControl();
 }