Implementation of GetFavicon for current tab.

chrome/browser/android/tab_android.h

Index: chrome/browser/android/tab_android.h
diff --git a/chrome/browser/android/tab_android.h b/chrome/browser/android/tab_android.h
index 0ee5392e2a471a6176e6afb9ea5dbf83652b5aff..b2daf2b553f2f11c82210ec8702375197e5af146 100644
--- a/chrome/browser/android/tab_android.h
+++ b/chrome/browser/android/tab_android.h
@@ -147,6 +147,10 @@ class TabAndroid : public CoreTabHelperDelegate,
                                            jstring jurl,
                                            jstring jtitle);
   bool Print(JNIEnv* env, jobject obj);
+  // Called to get favicon of current tab, return null if no favicon is 
+  // avaliable for current tab.
+  base::android::ScopedJavaLocalRef<jobject> GetCurrentTabFavicon(JNIEnv* env,
+                                                        jobject obj);

[Bernhard Bauer, 2014/07/02 14:09:40]

I think I would rename this back. The "current tab" doesn't make sense for a
method on a tab object. It's always going to be this tab's favicon (and that is
implicit).

 
   // Register the Tab's native methods through JNI.
   static bool RegisterTabAndroid(JNIEnv* env);