Use a map for app::m_Timers

fpdfsdk/javascript/app.h

Index: fpdfsdk/javascript/app.h
diff --git a/fpdfsdk/javascript/app.h b/fpdfsdk/javascript/app.h
index 97db59e437b4dcfd01e9871c97efc5dd35001b61..911d86586ad5b3dff412ffee59dbeafdfe20630d 100644
--- a/fpdfsdk/javascript/app.h
+++ b/fpdfsdk/javascript/app.h
@@ -7,6 +7,7 @@
 #ifndef FPDFSDK_JAVASCRIPT_APP_H_
 #define FPDFSDK_JAVASCRIPT_APP_H_
 
+#include <map>
 #include <memory>
 #include <vector>
 
@@ -165,7 +166,7 @@ class app : public CJS_EmbedObj {
 
   bool m_bCalculate;
   bool m_bRuntimeHighLight;
-  std::vector<std::unique_ptr<GlobalTimer>> m_Timers;
+  std::map<GlobalTimer*, std::unique_ptr<GlobalTimer>> m_Timers;
 };
 
 class CJS_App : public CJS_Object {