Avoid retaining the pointer to inspected WebContents in DevToolsWindow

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 8d8141eee16cfb3d5faf9f17d9ff6e14b44b75e3..3d7b2d1f8bce0d7cc684a399048d76add4c6e589 100644
--- a/chrome/browser/devtools/devtools_window.h
+++ b/chrome/browser/devtools/devtools_window.h
@@ -111,14 +111,14 @@ class DevToolsWindow : private content::NotificationObserver,
  private:
   friend class DevToolsControllerTest;
   static DevToolsWindow* Create(Profile* profile,
-                                content::RenderViewHost* inspected_rvh,
                                 DevToolsDockSide dock_side,
                                 bool shared_worker_frontend);
   DevToolsWindow(content::WebContents* web_contents,
                  Profile* profile,
-                 content::RenderViewHost* inspected_rvh,
                  DevToolsDockSide dock_side);
 
+  content::WebContents* GetInspectedWebContents();
+
   void CreateDevToolsBrowser();
   bool FindInspectedBrowserAndTabIndex(Browser**, int* tab);
   BrowserWindow* GetInspectedBrowserWindow();
@@ -199,7 +199,6 @@ class DevToolsWindow : private content::NotificationObserver,
   static DevToolsDockSide SideFromString(const std::string& dock_side);
 
   Profile* profile_;
-  content::WebContents* inspected_web_contents_;
   content::WebContents* web_contents_;
   Browser* browser_;
   DevToolsDockSide dock_side_;