DevTools: Do not close devtools if there are dirty files in workspace

chrome/browser/devtools/devtools_window.h

Index: chrome/browser/devtools/devtools_window.h
diff --git a/chrome/browser/devtools/devtools_window.h b/chrome/browser/devtools/devtools_window.h
index 0f1bdd696de7074aa03b448226e989fa78496906..738f17c3c5e2a4a6c3b92453d7374c14cc803106 100644
--- a/chrome/browser/devtools/devtools_window.h
+++ b/chrome/browser/devtools/devtools_window.h
@@ -130,6 +130,14 @@ class DevToolsWindow : private content::NotificationObserver,
 
   void Show(const DevToolsToggleAction& action);
 
+  static bool HandleBeforeUnload(content::WebContents*, bool, bool*);
+  static bool InterceptPageBeforeUnload(content::WebContents*);
+  static bool ShouldCloseDevToolsBrowser(Browser*);
+  static bool NeedToFireBeforeUnload(content::WebContents*);
+  static void PageClosingCanceled(content::WebContents*);
+
+  void SetDockSideForTest(DevToolsDockSide dock_side);
+
  private:
   friend class DevToolsControllerTest;
 
@@ -279,6 +287,7 @@ class DevToolsWindow : private content::NotificationObserver,
   int width_;
   int height_;
   DevToolsDockSide dock_side_before_minimized_;
+  bool inspected_page_is_closing_;
 
   scoped_ptr<DevToolsEmbedderMessageDispatcher> embedder_message_dispatcher_;
   base::WeakPtrFactory<DevToolsWindow> weak_factory_;