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

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

Index: chrome/browser/ui/views/frame/browser_view.cc
diff --git a/chrome/browser/ui/views/frame/browser_view.cc b/chrome/browser/ui/views/frame/browser_view.cc
index 2039a4490d0cf8abcf3048ee9ad2e1a1621b8c02..afd1468ab3b4ec8be52bf4c6501813a2e989b2d0 100644
--- a/chrome/browser/ui/views/frame/browser_view.cc
+++ b/chrome/browser/ui/views/frame/browser_view.cc
@@ -39,6 +39,7 @@
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/browser_window_state.h"
+#include "chrome/browser/ui/metro_pin_tab_helper.h"
 #include "chrome/browser/ui/omnibox/omnibox_popup_model.h"
 #include "chrome/browser/ui/omnibox/omnibox_popup_view.h"
 #include "chrome/browser/ui/omnibox/omnibox_view.h"
@@ -943,6 +944,8 @@ void BrowserView::UpdateReloadStopState(bool is_loading, bool force) {
 void BrowserView::UpdateToolbar(TabContents* contents,
                                 bool should_restore_state) {
   toolbar_->Update(contents->web_contents(), should_restore_state);
+  GetLocationBarView()->SetMetroPinnedState(
+      contents->metro_pin_tab_helper()->is_pinned());
 }
 
 void BrowserView::FocusToolbar() {
@@ -1417,7 +1420,14 @@ ToolbarView* BrowserView::GetToolbarView() const {
 ///////////////////////////////////////////////////////////////////////////////
 // BrowserView, TabStripModelObserver implementation:
 
+void BrowserView::TabInsertedAt(TabContents* contents,
+                                int index,
+                                bool foreground) {
+  contents->metro_pin_tab_helper()->set_observer(this);
+}
+
 void BrowserView::TabDetachedAt(TabContents* contents, int index) {
+  contents->metro_pin_tab_helper()->set_observer(NULL);
   // We use index here rather than comparing |contents| because by this time
   // the model has already removed |contents| from its list, so
   // browser_->GetActiveWebContents() will return NULL or something else.
@@ -1454,6 +1464,8 @@ void BrowserView::TabReplacedAt(TabStripModel* tab_strip_model,
                                 TabContents* old_contents,
                                 TabContents* new_contents,
                                 int index) {
+  new_contents->metro_pin_tab_helper()->set_observer(this);
+
   if (index != browser_->tab_strip_model()->active_index())
     return;
 
@@ -1877,6 +1889,12 @@ void BrowserView::OnSysColorChange() {
   browser::MaybeShowInvertBubbleView(browser_.get(), contents_);
 }
 
+void BrowserView::MetroPinnedStateChanged(content::WebContents* contents,
+                                          bool is_pinned) {
+  if (contents == chrome::GetActiveWebContents(browser()))
+    GetLocationBarView()->SetMetroPinnedState(is_pinned);
+}
+
 int BrowserView::GetOTRIconResourceID() const {
   int otr_resource_id = IDR_OTR_ICON;
   if (ui::GetDisplayLayout() == ui::LAYOUT_TOUCH) {