commit 2d5a0e173f3bb8335cf302f1194305c2f9e65bed
author Lei Zhang <thestig@chromium.org> Mon Oct 05 17:00:03 2015 -0700
committer Lei Zhang <thestig@chromium.org> Mon Oct 05 17:00:03 2015 -0700
tree 9e82cf609b817dfc153a1506ed2b2188663275d5
parent ca70a69f4b5ac05eb7e054cfa014d219b915f632

Merge to XFA: CJS_Timer should observe CJS_Runtime destruction.

Also remove dead CJS_EmbedObj::{Begin,End}Timer code.

BUG=539107
R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1384883002 .

(cherry picked from commit 794c9b67d3d519342aa7e15052766f7d4a99f551)

Review URL: https://codereview.chromium.org/1386053002 .

fpdfsdk/include/javascript/JS_Runtime.h

diff --git a/fpdfsdk/include/javascript/JS_Runtime.h b/fpdfsdk/include/javascript/JS_Runtime.h
index 042bba9..578da2e 100644
--- a/fpdfsdk/include/javascript/JS_Runtime.h
+++ b/fpdfsdk/include/javascript/JS_Runtime.h
@@ -20,6 +20,14 @@
 
 class CJS_Runtime : public IFXJS_Runtime {
  public:
+  class Observer {
+   public:
+    virtual void OnDestroyed() = 0;
+
+   protected:
+    virtual ~Observer() {}
+  };
+
   using FieldEvent = std::pair<CFX_WideString, JS_EVENT_T>;
 
   explicit CJS_Runtime(CPDFDoc_Environment* pApp);
@@ -50,6 +58,9 @@
   virtual FX_BOOL SetHValueByName(const CFX_ByteStringC& utf8Name,
                                   FXJSE_HVALUE hValue);
 
+  void AddObserver(Observer* observer);
+  void RemoveObserver(Observer* observer);
+
  private:
   void DefineJSObjects();
 
@@ -62,6 +73,7 @@
   bool m_isolateManaged;
   nonstd::unique_ptr<FXJS_ArrayBufferAllocator> m_pArrayBufferAllocator;
   v8::Global<v8::Context> m_context;
+  std::set<Observer*> m_observers;
 };
 
 #endif  // FPDFSDK_INCLUDE_JAVASCRIPT_JS_RUNTIME_H_