Use high resolution icons where possible for streamlined hosted app icons.

chrome/browser/favicon/favicon_tab_helper.h

Index: chrome/browser/favicon/favicon_tab_helper.h
diff --git a/chrome/browser/favicon/favicon_tab_helper.h b/chrome/browser/favicon/favicon_tab_helper.h
index b8255a66b848523b23d9081049e42006b97989ce..7758121ab6adb04ad7d7d8c740778d46a0e15155 100644
--- a/chrome/browser/favicon/favicon_tab_helper.h
+++ b/chrome/browser/favicon/favicon_tab_helper.h
@@ -51,6 +51,12 @@ class FaviconTabHelper : public content::WebContentsObserver,
   // space is provided for the favicon, and the favicon is never displayed.
   virtual bool ShouldDisplayFavicon();
 
+  // Returns the current tab's favicon urls. If this is empty,
+  // DidUpdateFaviconURL has not yet been called for the current navigation.
+  const std::vector<content::FaviconURL>& favicon_urls() const {
+    return favicon_urls_;
+  }
+
   // Allows the client to determine if they want to fetch the Favicons as
   // they are discovered.
   void set_should_fetch_icons(bool fetch) {
@@ -94,6 +100,8 @@ class FaviconTabHelper : public content::WebContentsObserver,
   Profile* profile_;
   bool should_fetch_icons_;
 
+  std::vector<content::FaviconURL> favicon_urls_;
+
   scoped_ptr<FaviconHandler> favicon_handler_;
 
   // Handles downloading touchicons. It is NULL if