AllocationProfiler: introduce allocation_profiler flag in V8 api.

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index 44a74ed5fea97282ce307cafd3d88df161da1adc..70b6b484b4930bb79c10748c61c11da9902912da 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -4587,6 +4587,24 @@ class V8_EXPORT V8 {
                                    FunctionEntryHook entry_hook);
 
   /**
+   * Allows the host application to enable allocation profiler.
+   *
+   * \param isolate the isolate to operate on.
+   * \returns true on success, false on failure.
+   * \note Enabling allocation profiler can only be done very early in
+   * an isolates lifetime, and once set, it cannot be revoked.
+   * It affects isolate initalization time.
+   */
+  static bool EnableAllocationProfiler(Isolate* isolate);
+
+  /**
+   * Allows the host application to get the status of allocation profiler.
+   *
+   * \param isolate the isolate to operate on.
+   * \returns true if profiler has been enabled and false otherwise.
+   */  static bool IsAllocationProfilerEnabled(Isolate* isolate);

[alph, 2013/11/05 13:55:20]

nit: a new line

+
+  /**
    * Allows the host application to provide the address of a function that is
    * notified each time code is added, moved or removed.
    *