DevTools: extract bindings from ShellDevToolsFrontend

content/shell/browser/shell_devtools_bindings.h

-// Copyright 2013 The Chromium Authors. All rights reserved.
+// Copyright 2017 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_SHELL_BROWSER_SHELL_DEVTOOLS_FRONTEND_H_
-#define CONTENT_SHELL_BROWSER_SHELL_DEVTOOLS_FRONTEND_H_
+#ifndef CONTENT_SHELL_BROWSER_SHELL_DEVTOOLS_BINDINGS_H_
+#define CONTENT_SHELL_BROWSER_SHELL_DEVTOOLS_BINDINGS_H_
 
 #include <memory>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "content/public/browser/devtools_agent_host.h"
+#include "content/public/browser/devtools_frontend_host.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "net/url_request/url_fetcher_delegate.h"
 
 #if !defined(OS_ANDROID)
 #include "content/public/browser/devtools_frontend_host.h"
 #endif
 
 namespace base {
 class Value;
 }
 
 namespace content {
 
-class RenderViewHost;
-class Shell;
+class ShellDevToolsDelegate {
+ public:
+  virtual void Close() = 0;
+  virtual ~ShellDevToolsDelegate(){};
+};
+
 class WebContents;
 
-class ShellDevToolsFrontend : public WebContentsObserver,
+class ShellDevToolsBindings : public WebContentsObserver,
                               public DevToolsAgentHostClient,
                               public net::URLFetcherDelegate {
  public:
-  static ShellDevToolsFrontend* Show(WebContents* inspected_contents);
+  ShellDevToolsBindings(WebContents* devtools_contents,
+                        WebContents* inspected_contents,
+                        ShellDevToolsDelegate* delegate);
 
-  void Activate();
-  void Focus();
   void InspectElementAt(int x, int y);
-  void Close();
-
-  void DisconnectFromTarget();
-
-  Shell* frontend_shell() const { return frontend_shell_; }
 
   void CallClientFunction(const std::string& function_name,
                           const base::Value* arg1,
                           const base::Value* arg2,
                           const base::Value* arg3);
+  ~ShellDevToolsBindings() override;
 
  protected:
-  ShellDevToolsFrontend(Shell* frontend_shell, WebContents* inspected_contents);
-  ~ShellDevToolsFrontend() override;
-
   // content::DevToolsAgentHostClient implementation.
   void AgentHostClosed(DevToolsAgentHost* agent_host, bool replaced) override;
   void DispatchProtocolMessage(DevToolsAgentHost* agent_host,
                                const std::string& message) override;
+
   void SetPreferences(const std::string& json);
   virtual void HandleMessageFromDevToolsFrontend(const std::string& message);
+  void CreateFrontendHost();
 
  private:
   // WebContentsObserver overrides
   void RenderViewCreated(RenderViewHost* render_view_host) override;
   void DocumentAvailableInMainFrame() override;
   void WebContentsDestroyed() override;
 
   // net::URLFetcherDelegate overrides.
   void OnURLFetchComplete(const net::URLFetcher* source) override;
 
-  void SendMessageAck(int request_id,
-                      const base::Value* arg1);
+  void SendMessageAck(int request_id, const base::Value* arg1);
 
-  Shell* frontend_shell_;
   WebContents* inspected_contents_;
+  ShellDevToolsDelegate* delegate_;
   scoped_refptr<DevToolsAgentHost> agent_host_;
   int inspect_element_at_x_;
   int inspect_element_at_y_;
 #if !defined(OS_ANDROID)
   std::unique_ptr<DevToolsFrontendHost> frontend_host_;
 #endif
   using PendingRequestsMap = std::map<const net::URLFetcher*, int>;
   PendingRequestsMap pending_requests_;
   base::DictionaryValue preferences_;
-  base::WeakPtrFactory<ShellDevToolsFrontend> weak_factory_;
+  base::WeakPtrFactory<ShellDevToolsBindings> weak_factory_;
 
-  DISALLOW_COPY_AND_ASSIGN(ShellDevToolsFrontend);
+  DISALLOW_COPY_AND_ASSIGN(ShellDevToolsBindings);
 };
 
 }  // namespace content
 
-#endif  // CONTENT_SHELL_BROWSER_SHELL_DEVTOOLS_FRONTEND_H_
+#endif  // CONTENT_SHELL_BROWSER_SHELL_DEVTOOLS_BINDINGS_H_