Implement the status tray/icon API for ChromeOS.

chrome/browser/chromeos/frame/browser_view.cc

Index: chrome/browser/chromeos/frame/browser_view.cc
diff --git a/chrome/browser/chromeos/frame/browser_view.cc b/chrome/browser/chromeos/frame/browser_view.cc
index f3a99e44c557cb04535e6f45e3d121ee3a187727..30ddc8e8e0068ea9623fc18ab369d79a400329ec 100644
--- a/chrome/browser/chromeos/frame/browser_view.cc
+++ b/chrome/browser/chromeos/frame/browser_view.cc
@@ -329,6 +329,26 @@ BrowserView::~BrowserView() {
   BrowserList::RemoveObserver(this);
 }
 
+void BrowserView::AddTrayButton(StatusAreaButton* button, bool bordered) {
+  status_area_->AddButton(button, bordered);
+}
+
+void BrowserView::RemoveTrayButton(StatusAreaButton* button) {
+  status_area_->RemoveButton(button);
+}
+
+bool BrowserView::ContainsButton(StatusAreaButton* button) {
+  return status_area_->Contains(button);
+}
+
+chromeos::BrowserView* BrowserView::GetBrowserViewForBrowser(Browser* browser) {
+  // This calls the static method BrowserView::GetBrowserViewForBrowser in the
+  // global namespace. Check the chrome/browser/ui/views/frame/browser_view.h
+  // file for details.
+  return static_cast<chromeos::BrowserView*>(
+      ::BrowserView::GetBrowserViewForBrowser(browser));
+}
+
 // BrowserView, ::BrowserView overrides:
 
 void BrowserView::Init() {