headless: Remove old load observer API

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"
 #include "headless/public/headless_export.h"
 #include "url/gurl.h"
 
 namespace headless {
 class HeadlessDevToolsTarget;
 
 // Class representing contents of a browser tab. Should be accessed from browser
 // main thread.
 class HEADLESS_EXPORT HeadlessWebContents {
  public:
   virtual ~HeadlessWebContents() {}
 
-  // 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() {}
@@ skipping 18 matching lines @@
  private:
   friend class HeadlessWebContentsImpl;
   HeadlessWebContents() {}
 
   DISALLOW_COPY_AND_ASSIGN(HeadlessWebContents);
 };
 
 }  // namespace headless
 
 #endif  // HEADLESS_PUBLIC_HEADLESS_WEB_CONTENTS_H_