Update view manager to support content handling.

mojo/services/html_viewer/html_document_view.h

 // Copyright 2014 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 MOJO_SERVICES_HTML_VIEWER_HTML_DOCUMENT_VIEW_H_
 #define MOJO_SERVICES_HTML_VIEWER_HTML_DOCUMENT_VIEW_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
 #include "mojo/public/cpp/application/lazy_interface_ptr.h"
+#include "mojo/services/public/cpp/view_manager/view_manager_client_factory.h"
+#include "mojo/services/public/cpp/view_manager/view_manager_delegate.h"
 #include "mojo/services/public/cpp/view_manager/view_observer.h"
+#include "mojo/services/public/interfaces/content_handler/content_handler.mojom.h"
 #include "mojo/services/public/interfaces/navigation/navigation.mojom.h"
 #include "mojo/services/public/interfaces/network/url_loader.mojom.h"
 #include "third_party/WebKit/public/web/WebFrameClient.h"
 #include "third_party/WebKit/public/web/WebViewClient.h"
 
 namespace mojo {
 
 class ViewManager;
 class View;
 
 // A view for a single HTML document.
 class HTMLDocumentView : public blink::WebViewClient,
                          public blink::WebFrameClient,
+                         public ViewManagerDelegate,
                          public ViewObserver {
  public:
-  HTMLDocumentView(ServiceProvider* service_provider,
-                   ViewManager* view_manager);
+  // Load a new HTMLDocument with |response|.
+  //
+  // |content_handler_imported| is used to request services of the connecting
+  // application (e.g., the application that called
+  // ContentHandler::OnConnect()).
+  //
+  // |content_handler_exported| exports services from HTMLDocumentView to the
+  // connecting application.
+  //
+  // |shell_connection| is the original ServiceProvider that was passed to
+  // HTMLViewer.
+  //
+  // TODO(aa): Remove |shell_connection|. It is used to get the NavigatorHost
+  // from the window manager. That should be exposed via |embedder_exported|
+  // (see OnEmbed() below) instead.
+  HTMLDocumentView(ContentHandlerResponsePtr response,
+                   scoped_ptr<ServiceProvider> content_handler_imported,
+                   ServiceProviderImpl* content_handler_exported,
+                   ApplicationConnection* shell_connection);
   virtual ~HTMLDocumentView();
 
-  void AttachToView(View* view);
-
-  void Load(URLResponsePtr response);
-
  private:
   // WebViewClient methods:
   virtual blink::WebStorageNamespace* createSessionStorageNamespace();
 
   // WebWidgetClient methods:
   virtual void didInvalidateRect(const blink::WebRect& rect);
   virtual bool allowsBrokenNullLayerTreeView() const;
 
   // WebFrameClient methods:
   virtual blink::WebFrame* createChildFrame(blink::WebLocalFrame* parent,
                                             const blink::WebString& frameName);
   virtual void frameDetached(blink::WebFrame*);
   virtual blink::WebCookieJar* cookieJar(blink::WebLocalFrame* frame);
   virtual blink::WebNavigationPolicy decidePolicyForNavigation(
       blink::WebLocalFrame* frame, blink::WebDataSource::ExtraData* data,
       const blink::WebURLRequest& request, blink::WebNavigationType nav_type,
       blink::WebNavigationPolicy default_policy, bool isRedirect);
   virtual void didAddMessageToConsole(
       const blink::WebConsoleMessage& message,
       const blink::WebString& source_name,
       unsigned source_line,
       const blink::WebString& stack_trace);
   virtual void didNavigateWithinPage(
       blink::WebLocalFrame* frame,
       const blink::WebHistoryItem& history_item,
       blink::WebHistoryCommitType commit_type);
 
+  // ViewManagerDelegate methods:
+  virtual void OnEmbed(
+      ViewManager* view_manager,
+      View* root,
+      ServiceProviderImpl* exported_services,
+      scoped_ptr<ServiceProvider> imported_services) OVERRIDE;
+  virtual void OnViewManagerDisconnected(ViewManager* view_manager) OVERRIDE;
+
   // ViewObserver methods:
   virtual void OnViewBoundsChanged(View* view,
                                    const gfx::Rect& old_bounds,
                                    const gfx::Rect& new_bounds) OVERRIDE;
   virtual void OnViewDestroyed(View* view) OVERRIDE;
   virtual void OnViewInputEvent(View* view, const EventPtr& event) OVERRIDE;
 
+  void Load(URLResponsePtr response);
+
   void Repaint();
 
-  ViewManager* view_manager_;
+  ContentHandlerResponsePtr response_;
+  scoped_ptr<ServiceProvider> imported_services_;
   LazyInterfacePtr<NavigatorHost> navigator_host_;
   blink::WebView* web_view_;
   View* root_;
+  ViewManagerClientFactory view_manager_client_factory_;
   bool repaint_pending_;
 
   base::WeakPtrFactory<HTMLDocumentView> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(HTMLDocumentView);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_HTML_VIEWER_HTML_DOCUMENT_VIEW_H_