Fix memory leak in extension pref store...

chrome/browser/extensions/extension_pref_store.cc

Index: chrome/browser/extensions/extension_pref_store.cc
===================================================================
--- chrome/browser/extensions/extension_pref_store.cc	(revision 52128)
+++ chrome/browser/extensions/extension_pref_store.cc	(working copy)
@@ -5,6 +5,7 @@
 #include "chrome/browser/extensions/extension_pref_store.h"
 
 #include "base/logging.h"
+#include "base/stl_util-inl.h"
 #include "base/values.h"
 #include "chrome/browser/pref_service.h"
 
@@ -13,6 +14,10 @@
       prefs_(new DictionaryValue()) {
 }
 
+ExtensionPrefStore::~ExtensionPrefStore() {
+  STLDeleteElements(&extension_stack_);
+}
+
 // This could be sped up by keeping track of which extension currently controls
 // a given preference, among other optimizations. But we estimate that fewer
 // than 10 installed extensions will be trying to control any preferences, so
@@ -87,6 +92,7 @@
       i != extension_stack_.end(); ++i) {
     if ((*i)->extension_id == extension_id) {
       pref_values.reset((*i)->pref_values);
+      delete *i;
       extension_stack_.erase(i);
       break;
     }