Add a public content/ interface for intents. Use it.

content/browser/intents/intents_host_impl.h

+// Copyright (c) 2011 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 CONTENT_BROWSER_INTENTS_INTENTS_HOST_IMPL_H_
+#define CONTENT_BROWSER_INTENTS_INTENTS_HOST_IMPL_H_
+
+#include "base/callback.h"
+#include "base/compiler_specific.h"
+#include "content/browser/tab_contents/tab_contents_observer.h"
+#include "content/public/browser/intents_host.h"
+#include "webkit/glue/web_intent_data.h"
+
+class IntentInjector;
+
+// Implements the coordinator object interface for Web Intents.
+// Observes the source (client) tab to make sure messages sent back by the
+// service can be delivered. Keeps a copy of triggering intent data to
+// be delivered to the service and serves as a forwarder for sending reply
+// messages back to the client page.
+class IntentsHostImpl : public content::IntentsHost,
+                        public TabContentsObserver {
+ public:
+  // |source_tab| is the page which triggered the web intent.
+  // |intent| is the intent payload created by that page.
+  // |intent_id| is the identifier assigned by WebKit to direct replies back to
+  // the correct Javascript callback.
+  IntentsHostImpl(TabContents* source_tab,
+                  const webkit_glue::WebIntentData& intent,
+                  int intent_id);
+  virtual ~IntentsHostImpl();
+
+  // IntentsHost implementation
+  virtual const webkit_glue::WebIntentData& GetIntent() OVERRIDE;
+  virtual void DispatchIntent(TabContents* tab_contents) OVERRIDE;
+  virtual void SendReplyMessage(webkit_glue::WebIntentReplyType reply_type,
+                                const string16& data) OVERRIDE;
+  virtual void RegisterReplyNotification(const base::Closure& closure) OVERRIDE;
+
+  // TabContentsObserver implementation
+  virtual void TabContentsDestroyed(TabContents* tab) OVERRIDE;
+
+ private:
+  webkit_glue::WebIntentData intent_;
+
+  int intent_id_;
+
+  // Weak pointer to the internal object which provides the intent to the
+  // newly-created service tab contents. This object is self-deleting
+  // (connected to the service TabContents).
+  IntentInjector* intent_injector_;
+
+  // A callback to be notified when SendReplyMessage is called.
+  base::Closure reply_notifier_;
+
+  DISALLOW_COPY_AND_ASSIGN(IntentsHostImpl);
+};
+
+#endif  // CONTENT_BROWSER_INTENTS_INTENTS_HOST_IMPL_H_