Add TabStripModel as a parameter of some functions in TabStripModelObserver

chrome/browser/extensions/api/tabs/tabs_event_router.h

Index: chrome/browser/extensions/api/tabs/tabs_event_router.h
diff --git a/chrome/browser/extensions/api/tabs/tabs_event_router.h b/chrome/browser/extensions/api/tabs/tabs_event_router.h
index da6004c7840772807ee6226b100554caee7ee440..340498bd40a93d4daf709c835c99dbe5fe36a3cc 100644
--- a/chrome/browser/extensions/api/tabs/tabs_event_router.h
+++ b/chrome/browser/extensions/api/tabs/tabs_event_router.h
@@ -54,7 +54,8 @@ class TabsEventRouter : public TabStripModelObserver,
   void OnBrowserSetLastActive(Browser* browser) override;
 
   // TabStripModelObserver:
-  void TabInsertedAt(content::WebContents* contents,
+  void TabInsertedAt(TabStripModel* tab_strip_model,
+                     content::WebContents* contents,
                      int index,
                      bool active) override;
   void TabClosingAt(TabStripModel* tab_strip_model,
@@ -77,7 +78,8 @@ class TabsEventRouter : public TabStripModelObserver,
                      content::WebContents* old_contents,
                      content::WebContents* new_contents,
                      int index) override;
-  void TabPinnedStateChanged(content::WebContents* contents,
+  void TabPinnedStateChanged(TabStripModel* tab_strip_model,
+                             content::WebContents* contents,
                              int index) override;
 
   // ZoomObserver: