Headless: Remove obsolete Mojo code and some other obsolete APIs

headless/lib/browser/headless_web_contents_impl.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_LIB_BROWSER_HEADLESS_WEB_CONTENTS_IMPL_H_
 #define HEADLESS_LIB_BROWSER_HEADLESS_WEB_CONTENTS_IMPL_H_
 
 #include <list>
 #include <memory>
 #include <string>
@@ skipping 39 matching lines @@
   // Takes ownership of |web_contents|.
   static std::unique_ptr<HeadlessWebContentsImpl> CreateFromWebContents(
       content::WebContents* web_contents,
       HeadlessBrowserContextImpl* browser_context);
 
   // HeadlessWebContents implementation:
   void AddObserver(Observer* observer) override;
   void RemoveObserver(Observer* observer) override;
   HeadlessDevToolsTarget* GetDevToolsTarget() override;
   HeadlessTabSocket* GetHeadlessTabSocket() const override;
-  bool GetFrameTreeNodeIdForDevToolsAgentHostId(
-      const std::string& devtools_agent_host_id,
-      int* frame_tree_node_id) const override;
 
   // HeadlessDevToolsTarget implementation:
   bool AttachClient(HeadlessDevToolsClient* client) override;
   void ForceAttachClient(HeadlessDevToolsClient* client) override;
   void DetachClient(HeadlessDevToolsClient* client) override;
   bool IsAttached() override;
 
   // content::DevToolsAgentHostObserver implementation:
   void DevToolsAgentHostAttached(
       content::DevToolsAgentHost* agent_host) override;
@@ skipping 36 matching lines @@
   int GetMainFrameRenderProcessId() const;
 
  private:
   // Takes ownership of |web_contents|.
   HeadlessWebContentsImpl(content::WebContents* web_contents,
                           HeadlessBrowserContextImpl* browser_context);
 
   void InitializeScreen(const gfx::Size& initial_size);
   using MojoService = HeadlessWebContents::Builder::MojoService;
 
-  std::unordered_map<content::RenderFrameHost*, std::string>
-      render_frame_host_to_devtools_agent_host_id_;
-  std::unordered_map<std::string, int> devtools_agent_id_to_frame_tree_node_id_;
-
   class Delegate;
   std::unique_ptr<Delegate> web_contents_delegate_;
   std::unique_ptr<HeadlessWindowTreeHost> window_tree_host_;
   std::unique_ptr<content::WebContents> web_contents_;
   scoped_refptr<content::DevToolsAgentHost> agent_host_;
   std::list<MojoService> mojo_services_;
   std::unique_ptr<HeadlessTabSocketImpl> headless_tab_socket_;
 
   HeadlessBrowserContextImpl* browser_context_;      // Not owned.
   // TODO(alexclarke): With OOPIF there may be more than one renderer, we need
   // to fix this. See crbug.com/715924
   content::RenderProcessHost* render_process_host_;  // Not owned.
 
   using ObserverMap =
       std::unordered_map<HeadlessWebContents::Observer*,
                          std::unique_ptr<WebContentsObserverAdapter>>;
   ObserverMap observer_map_;
 
   DISALLOW_COPY_AND_ASSIGN(HeadlessWebContentsImpl);
 };
 
 }  // namespace headless
 
 #endif  // HEADLESS_LIB_BROWSER_HEADLESS_WEB_CONTENTS_IMPL_H_