Introduce v8::CpuProfiler::New and v8::CpuProfiler::Dispose API.

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index ce5eff642ad06b36e2c8473aa4fefd4bffe0f696..8ac82b67c4a45be22ee4f6a23aeecfb83dbbfb0f 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -5932,7 +5932,8 @@ class V8_EXPORT Isolate {
    * is initialized. It is the embedder's responsibility to stop all CPU
    * profiling activities if it has started any.
    */
-  CpuProfiler* GetCpuProfiler();
+  V8_DEPRECATE_SOON("CpuProfiler should be created with CpuProfiler::New call.",
+                    CpuProfiler* GetCpuProfiler());
 
   /** Returns true if this isolate has a current context. */
   bool InContext();