Lazy creating of background pages --enable-lazy-background-pages)

base/task.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BASE_TASK_H_
 #define BASE_TASK_H_
 #pragma once
 
 #include "base/base_export.h"
 #include "base/debug/alias.h"
@@ skipping 122 matching lines @@
   inline CancelableTask* NewRunnableMethod(Method method,
                                            const A& a,
                                            const B& b,
                                            const C& c,
                                            const D& d,
                                            const E& e) {
     return new RunnableMethod<Method, Tuple5<A, B, C, D, E> >(
         weak_factory_.GetWeakPtr(), method, MakeTuple(a, b, c, d, e));
   }
 
+  template <class Method, class A, class B, class C, class D, class E,
+            class F, class G>
+  inline CancelableTask* NewRunnableMethod(Method method,
+                                           const A& a,
+                                           const B& b,
+                                           const C& c,
+                                           const D& d,
+                                           const E& e,
+                                           const F& f,
+                                           const G& g) {
+    return new RunnableMethod<Method, Tuple7<A, B, C, D, E, F, G> >(
+        weak_factory_.GetWeakPtr(), method, MakeTuple(a, b, c, d, e, f, g));
+  }
+
   void RevokeAll() { weak_factory_.InvalidateWeakPtrs(); }
 
   bool empty() const { return !weak_factory_.HasWeakPtrs(); }
 
  protected:
   template <class Method, class Params>
   class RunnableMethod : public CancelableTask {
    public:
     RunnableMethod(const base::WeakPtr<T>& obj,
                    Method meth,
@@ skipping 448 matching lines @@
   Task* task_;
   bool* should_leak_task_;
   static bool kTaskLeakingDefault;
 };
 
 }  // namespace subtle
 
 }  // namespace base
 
 #endif  // BASE_TASK_H_