<webview>: Implement WebRequest API

chrome/browser/webview/webview_guest.h

Index: chrome/browser/webview/webview_guest.h
diff --git a/chrome/browser/webview/webview_guest.h b/chrome/browser/webview/webview_guest.h
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+// Copyright (c) 2013 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_BROWSER_WEBVIEW_WEBVIEW_GUEST_H_
+#define CHROME_BROWSER_WEBVIEW_WEBVIEW_GUEST_H_
+
+#include "content/public/browser/web_contents_observer.h"
+
+namespace chrome {
+
+// A WebViewGuest is a WebContentsObserver on the guest WebContents of a
+// <webview> tag. It provides the browser-side implementation of the <webview>
+// API and manages the lifetime of <webview> extension events.
+class WebViewGuest : public content::WebContentsObserver {
+ public:
+  WebViewGuest(content::WebContents* guest_web_contents,
+               content::WebContents* embedder_web_contents,
+               const std::string& extension_id);
+  virtual ~WebViewGuest();
+
+  static WebViewGuest* From(void* profile, int instance_id);
+
+  content::WebContents* embedder_web_contents() const {
+    return embedder_web_contents_;
+  }
+
+  content::WebContents* web_contents() const {
+    return WebContentsObserver::web_contents();
+  }
+ private:
+  virtual void WebContentsDestroyed(
+      content::WebContents* web_contents) OVERRIDE;
+
+  content::WebContents* embedder_web_contents_;
+  std::string extension_id_;
+  int embedder_render_process_id_;
+  // Profile and instance ID are cached here because |web_contents()| is
+  // null on destruction.
+  void* profile_;
+  int instance_id_;
+};
+
+}  // namespace chrome
+
+#endif  // CHROME_BROWSER_WEBVIEW_WEBVIEW_GUEST_H_