Removing unused SetBrowserContext

content/browser/frame_host/navigation_controller_impl.h

 // Copyright 2013 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_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 24 matching lines @@
     : public NON_EXPORTED_BASE(NavigationController) {
  public:
   NavigationControllerImpl(
       NavigationControllerDelegate* delegate,
       BrowserContext* browser_context);
   ~NavigationControllerImpl() override;
 
   // NavigationController implementation:
   WebContents* GetWebContents() const override;
   BrowserContext* GetBrowserContext() const override;
-  void SetBrowserContext(BrowserContext* browser_context) override;
   void Restore(int selected_navigation,
                RestoreType type,
                std::vector<std::unique_ptr<NavigationEntry>>* entries) override;
   NavigationEntryImpl* GetActiveEntry() const override;
   NavigationEntryImpl* GetVisibleEntry() const override;
   int GetCurrentEntryIndex() const override;
   NavigationEntryImpl* GetLastCommittedEntry() const override;
   int GetLastCommittedEntryIndex() const override;
   bool CanViewSource() const override;
   int GetEntryCount() const override;
@@ skipping 393 matching lines @@
   TimeSmoother time_smoother_;
 
   std::unique_ptr<NavigationEntryScreenshotManager> screenshot_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationControllerImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_IMPL_H_