Make WeakPtr::operator* return reference instead of pointer

base/memory/weak_ptr.h

Index: base/memory/weak_ptr.h
diff --git a/base/memory/weak_ptr.h b/base/memory/weak_ptr.h
index c0ba7f51c22691bda4c527b102ccfbc9fca35cb5..b66f02431aac2aa48bcf9babc396de3d8e055095 100644
--- a/base/memory/weak_ptr.h
+++ b/base/memory/weak_ptr.h
@@ -171,9 +171,9 @@ class WeakPtr : public internal::WeakPtrBase {
   T* get() const { return ref_.is_valid() ? ptr_ : NULL; }
   operator T*() const { return get(); }
 
-  T* operator*() const {
+  T& operator*() const {
     DCHECK(get() != NULL);
-    return get();
+    return *get();
   }
   T* operator->() const {
     DCHECK(get() != NULL);