DevTools: allow storing devtools preferences on the browser side.

chrome/browser/devtools/devtools_ui_bindings.h

 // Copyright 2014 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_DEVTOOLS_DEVTOOLS_UI_BINDINGS_H_
 #define CHROME_BROWSER_DEVTOOLS_DEVTOOLS_UI_BINDINGS_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 120 matching lines @@
   void ZoomOut() override;
   void ResetZoom() override;
   void SetDevicesUpdatesEnabled(bool enabled) override;
   void SendMessageToBrowser(const std::string& message) override;
   void RecordEnumeratedHistogram(const std::string& name,
                                  int sample,
                                  int boundary_value) override;
   void SendJsonRequest(const DispatchCallback& callback,
                        const std::string& browser_id,
                        const std::string& url) override;
+  void GetPreferences(const DispatchCallback& callback) override;
+  void SetPreference(const std::string& name,
+                     const std::string& value) override;
+  void RemovePreference(const std::string& name) override;
+  void ClearPreferences() override;
 
   // net::URLFetcherDelegate overrides.
   void OnURLFetchComplete(const net::URLFetcher* source) override;
 
   void EnableRemoteDeviceCounter(bool enable);
 
   void SendMessageAck(int request_id,
                       const base::Value* arg1);
 
   // DevToolsAndroidBridge::DeviceCountListener override:
@@ skipping 61 matching lines @@
   scoped_ptr<DevToolsEmbedderMessageDispatcher> embedder_message_dispatcher_;
   GURL url_;
   using PendingRequestsMap = std::map<const net::URLFetcher*, DispatchCallback>;
   PendingRequestsMap pending_requests_;
   base::WeakPtrFactory<DevToolsUIBindings> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsUIBindings);
 };
 
 #endif  // CHROME_BROWSER_DEVTOOLS_DEVTOOLS_UI_BINDINGS_H_