Use apple-touch-icons for streamlined hosted apps.

chrome/browser/extensions/tab_helper.h

Index: chrome/browser/extensions/tab_helper.h
diff --git a/chrome/browser/extensions/tab_helper.h b/chrome/browser/extensions/tab_helper.h
index 0905d71f949584cdb3dd57a1954bd9d792a7bcf2..1b939fff2121c6d0a8e15f99dc39671624a53c7b 100644
--- a/chrome/browser/extensions/tab_helper.h
+++ b/chrome/browser/extensions/tab_helper.h
@@ -6,6 +6,7 @@
 #define CHROME_BROWSER_EXTENSIONS_TAB_HELPER_H_
 
 #include <map>
+#include <set>
 #include <string>
 #include <vector>
 
@@ -87,6 +88,14 @@ class TabHelper : public content::WebContentsObserver,
     TabHelper* tab_helper_;
   };
 
+  // This finds the closest not-smaller bitmap in |bitmaps| for each size in
+  // |sizes| and resizes it to that size. This returns a vector of bitmaps
+  // which contains only bitmaps of a size in |sizes| and at most one bitmap of
+  // each size.
+  static std::vector<SkBitmap> ConstrainBitmapsToSizes(
+      const std::vector<SkBitmap>& bitmaps,
+      const std::set<int>& sizes);
+
   virtual ~TabHelper();
 
   void AddScriptExecutionObserver(ScriptExecutionObserver* observer) {