- Electron version: 0.36.12, 0.37.6
- Operating system: Kubuntu 15.10

Try Ctrl+Shift+F, find progress freeze always.

atom/browser/common_web_contents_delegate.h
const std::vector<content::ColorSuggestion>& suggestions) override;
  void RunFileChooser(content::WebContents* web_contents,
                      const content::FileChooserParams& params) override;
  void EnumerateDirectory(content::WebContents* web_contents,
                          int request_id,
                          const base::FilePath& path) override;
  void EnterFullscreenModeForTab(content::WebContents* source,
                                 const GURL& origin) override;
  void ExitFullscreenModeForTab(content::WebContents* source) override;
  bool IsFullscreenForTabOrPending(
      const content::WebContents* source) const override;
  content::SecurityStyle GetSecurityStyle(
      content::WebContents* web_contents,
      content::SecurityStyleExplanations* explanations) override;
  
  void DevToolsSaveToFile(const std::string& url,
                          const std::string& content,
                          bool save_as) override;
  void DevToolsAppendToFile(const std::string& url,
                            const std::string& content) override;
  void DevToolsRequestFileSystems() override;
  void DevToolsAddFileSystem(const base::FilePath& path) override;
  void DevToolsRemoveFileSystem(
      const base::FilePath& file_system_path) override;
  
#if defined(TOOLKIT_VIEWS)
  gfx::ImageSkia GetDevToolsWindowIcon() override;
#endif
#if defined(USE_X11)
  void GetDevToolsWindowWMClass(