Add rect clip to convex_poly_clip GM

src/core/SkTLList.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkTLList_DEFINED
 #define SkTLList_DEFINED
 
@@ skipping 57 matching lines @@
 
     T* addToHead(const T& t) {
         this->validate();
         Node* node = this->createNode();
         fList.addToHead(node);
         SkNEW_PLACEMENT_ARGS(node->fObj, T, (t));
         this->validate();
         return reinterpret_cast<T*>(node->fObj);
     }
 
+    T* addToHead() {
+        this->validate();
+        Node* node = this->createNode();
+        fList.addToHead(node);
+        SkNEW_PLACEMENT(node->fObj, T);
+        this->validate();
+        return reinterpret_cast<T*>(node->fObj);
+    }
+
     T* addToTail(const T& t) {
         this->validate();
         Node* node = this->createNode();
         fList.addToTail(node);
         SkNEW_PLACEMENT_ARGS(node->fObj, T, (t));
         this->validate();
         return reinterpret_cast<T*>(node->fObj);
     }
 
+    T* addToTail() {
+        this->validate();
+        Node* node = this->createNode();
+        fList.addToTail(node);
+        SkNEW_PLACEMENT(node->fObj, T);
+        this->validate();
+        return reinterpret_cast<T*>(node->fObj);
+    }
+
     /** Adds a new element to the list before the location indicated by the iterator. If the
         iterator refers to a NULL location then the new element is added at the tail */
     T* addBefore(const T& t, const Iter& location) {
         return SkNEW_PLACEMENT_ARGS(this->internalAddBefore(location), T, (t));
     }
 
     /** Adds a new element to the list after the location indicated by the iterator. If the
         iterator refers to a NULL location then the new element is added at the head */
     T* addAfter(const T& t, const Iter& location) {
         return SkNEW_PLACEMENT_ARGS(this->internalAddAfter(location), T, (t));
@@ skipping 279 matching lines @@
 #define SkNEW_INSERT_IN_LLIST_AFTER(list, location, type_name, args) \
     (new ((list), SkTLList< type_name >::kAfter_Placement, (location)) type_name args)
 
 #define SkNEW_INSERT_AT_LLIST_HEAD(list, type_name, args) \
     SkNEW_INSERT_IN_LLIST_BEFORE((list), (list)->headIter(), type_name, args)
 
 #define SkNEW_INSERT_AT_LLIST_TAIL(list, type_name, args) \
     SkNEW_INSERT_IN_LLIST_AFTER((list), (list)->tailIter(), type_name, args)
 
 #endif