[headless] AddWindowTreeClient

headless/public/headless_web_contents.h

 // Copyright 2015 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 HEADLESS_PUBLIC_HEADLESS_WEB_CONTENTS_H_
 #define HEADLESS_PUBLIC_HEADLESS_WEB_CONTENTS_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 11 matching lines @@
 
   // TODO(skyostil): Replace this with an equivalent client API.
   class Observer {
    public:
     // All the following notifications will be called on browser main thread.
     virtual void DocumentOnLoadCompletedInMainFrame() {}
     virtual void DidFinishNavigation(bool success) {}
 
     // Indicates that this HeadlessWebContents instance is now ready to be
     // inspected using a HeadlessDevToolsClient.
+    //
+    // TODO(altimin): Support this event for pages that aren't created by us.
     virtual void DevToolsTargetReady() {}
 
    protected:
     Observer() {}
     virtual ~Observer() {}
 
    private:
     DISALLOW_COPY_AND_ASSIGN(Observer);
   };
 
   // Add or remove an observer to receive events from this WebContents.
   // |observer| must outlive this class or be removed prior to being destroyed.
   virtual void AddObserver(Observer* observer) = 0;
   virtual void RemoveObserver(Observer* observer) = 0;
 
   // Return a DevTools target corresponding to this tab. Note that this method
   // won't return a valid value until Observer::DevToolsTargetReady has been
   // signaled.
   virtual HeadlessDevToolsTarget* GetDevToolsTarget() = 0;
 
+  // Close this page. |HeadlessWebContents| object will be destroyed.
+  virtual void Close() = 0;
+
  private:
   friend class HeadlessWebContentsImpl;
   HeadlessWebContents() {}
 
   DISALLOW_COPY_AND_ASSIGN(HeadlessWebContents);
 };
 
 }  // namespace headless
 
 #endif  // HEADLESS_PUBLIC_HEADLESS_WEB_CONTENTS_H_