Convert SetIsIncognitoProcess to use mojo.

chrome/renderer/chrome_render_thread_observer.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_RENDERER_CHROME_RENDER_THREAD_OBSERVER_H_
 #define CHROME_RENDERER_CHROME_RENDER_THREAD_OBSERVER_H_
 
 #include <memory>
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/metrics/field_trial.h"
+#include "chrome/common/renderer.mojom.h"
 #include "components/content_settings/core/common/content_settings.h"
 #include "components/variations/child_process_field_trial_syncer.h"
 #include "content/public/renderer/render_thread_observer.h"
+#include "mojo/public/cpp/bindings/associated_binding.h"
 
 class GURL;
 struct ContentSettings;
 
 namespace content {
 class ResourceDispatcherDelegate;
 }
 
 namespace visitedlink {
 class VisitedLinkSlave;
 }
 
 // This class filters the incoming control messages (i.e. ones not destined for
 // a RenderView) for Chrome specific messages that the content layer doesn't
 // happen.  If a few messages are related, they should probably have their own
 // observer.
 class ChromeRenderThreadObserver : public content::RenderThreadObserver,
-                                   public base::FieldTrialList::Observer {
+                                   public base::FieldTrialList::Observer,
+                                   public chrome::mojom::Renderer {

[nigeltao1, 2016/11/27 01:15:49]

Should this be

NON_EXPORTED_BASE(public chrome::mojom::Renderer)

I don't know (AFAICT it's a MSVC / Windows thing??), but I saw this in passing
for the content::mojom::Renderer code that I copy/pasted.

[Ken Rockot(use gerrit already), 2016/11/29 23:20:09]

That's only relevant if the inheriting class is exported, which this is not.

  public:
   ChromeRenderThreadObserver();
   ~ChromeRenderThreadObserver() override;
 
   static bool is_incognito_process() { return is_incognito_process_; }
 
   // Returns a pointer to the content setting rules owned by
   // |ChromeRenderThreadObserver|.
   const RendererContentSettingRules* content_setting_rules() const;
 
   visitedlink::VisitedLinkSlave* visited_link_slave() {
     return visited_link_slave_.get();
   }
 
  private:
   // content::RenderThreadObserver:
+  void RegisterMojoInterfaces(
+      content::AssociatedInterfaceRegistry* associated_interfaces) override;
   bool OnControlMessageReceived(const IPC::Message& message) override;
   void OnRenderProcessShutdown() override;
 
   // base::FieldTrialList::Observer:
   void OnFieldTrialGroupFinalized(const std::string& trial_name,
                                   const std::string& group_name) override;
 
-  void OnSetIsIncognitoProcess(bool is_incognito_process);
+  // chrome::mojom::Renderer:
+  void InitialConfiguration(
+      chrome::mojom::InitialConfigurationParamsPtr params) override;
+
+  void OnRendererInterfaceRequest(
+      chrome::mojom::RendererAssociatedRequest request);
+
   void OnSetContentSettingsForCurrentURL(
       const GURL& url, const ContentSettings& content_settings);
   void OnSetContentSettingRules(const RendererContentSettingRules& rules);
   void OnGetCacheResourceStats();
   void OnSetFieldTrialGroup(const std::string& trial_name,
                             const std::string& group_name);
 
   static bool is_incognito_process_;
   std::unique_ptr<content::ResourceDispatcherDelegate> resource_delegate_;
   RendererContentSettingRules content_setting_rules_;
   variations::ChildProcessFieldTrialSyncer field_trial_syncer_;
 
   std::unique_ptr<visitedlink::VisitedLinkSlave> visited_link_slave_;
 
+  mojo::AssociatedBinding<chrome::mojom::Renderer> renderer_binding_;
+
   base::WeakPtrFactory<ChromeRenderThreadObserver> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeRenderThreadObserver);
 };
 
 #endif  // CHROME_RENDERER_CHROME_RENDER_THREAD_OBSERVER_H_