Added idle notification to the API.

The implementation is still empty.

Review URL: http://codereview.chromium.org/165445

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2674 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

include/v8.h

@@ -2201,6 +2201,14 @@ class V8EXPORT V8 {
    */
   static bool Dispose();
 
+
+  /**
+   * Optional notification that the embedder is idle.
+   * V8 uses the notification to reduce memory footprint.
+   * \param is_high_priority tells whether the embedder is high priority.
+   */
+  static void IdleNotification(bool is_high_priority);
+
  private:
   V8();
 

src/api.cc

@@ -2558,6 +2558,10 @@ bool v8::V8::Dispose() {
 }
 
 
+void  v8::V8::IdleNotification(bool is_high_priority) {
+  i::V8::IdleNotification(is_high_priority);
+}
+
 const char* v8::V8::GetVersion() {
   static v8::internal::EmbeddedVector<char, 128> buffer;
   v8::internal::Version::GetString(buffer);

src/v8.cc

@@ -156,6 +156,10 @@ uint32_t V8::Random() {
   return (hi << 16) + (lo & 0xFFFF);
 }
 
+void V8::IdleNotification(bool is_high_priority) {
+  // todo(bak): Reduce memory footprint.
+}
+
 
 Smi* V8::RandomPositiveSmi() {
   uint32_t random = Random();

src/v8.h

@@ -99,6 +99,9 @@ class V8 : public AllStatic {
   static uint32_t Random();
   static Smi* RandomPositiveSmi();
 
+  // Idle notification directly from the API.
+  static void IdleNotification(bool is_high_priority);
+
  private:
   // True if engine is currently running
   static bool is_running_;