Add pin icon to the omnibar in windows 8 metro mode.

chrome/browser/ui/views/frame/browser_view.h

Index: chrome/browser/ui/views/frame/browser_view.h
diff --git a/chrome/browser/ui/views/frame/browser_view.h b/chrome/browser/ui/views/frame/browser_view.h
index e3feb6cf8e2b62bbd1d38167374740fc129de31a..8d860eb3ec892e8a9e597bc1522942879e8e7b8c 100644
--- a/chrome/browser/ui/views/frame/browser_view.h
+++ b/chrome/browser/ui/views/frame/browser_view.h
@@ -16,6 +16,7 @@
 #include "chrome/browser/infobars/infobar_container.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
+#include "chrome/browser/ui/metro_pinned_state_observer.h"
 #include "chrome/browser/ui/search/search_types.h"
 #include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
 #include "chrome/browser/ui/views/frame/browser_frame.h"
@@ -92,7 +93,8 @@ class BrowserView : public BrowserWindow,
                     public views::ClientView,
                     public InfoBarContainer::Delegate,
                     public views::SingleSplitViewListener,
-                    public gfx::SysColorChangeListener {
+                    public gfx::SysColorChangeListener,
+                    public MetroPinnedStateObserver {
  public:
   // The browser view's class name.
   static const char kViewClassName[];
@@ -353,6 +355,9 @@ class BrowserView : public BrowserWindow,
   virtual ToolbarView* GetToolbarView() const OVERRIDE;
 
   // Overridden from TabStripModelObserver:
+  virtual void TabInsertedAt(TabContents* contents,
+                             int index,
+                             bool foreground) OVERRIDE;
   virtual void TabDetachedAt(TabContents* contents, int index) OVERRIDE;
   virtual void TabDeactivated(TabContents* contents) OVERRIDE;
   virtual void ActiveTabChanged(TabContents* old_contents,
@@ -414,6 +419,10 @@ class BrowserView : public BrowserWindow,
   // gfx::ScopedSysColorChangeListener overrides:
   virtual void OnSysColorChange() OVERRIDE;
 
+  // MetroPinnedStateObserver overrides:
+  virtual void MetroPinnedStateChanged(content::WebContents* contents,
+                                       bool is_pinned) OVERRIDE;
+
   // Returns the resource ID to use for the OTR icon, which depends on
   // which layout is being shown and whether we are full-screen.
   int GetOTRIconResourceID() const;