Make sure controller is properly reset when the picker is closed.

chrome/browser/ui/intents/web_intent_picker_controller.cc

Index: chrome/browser/ui/intents/web_intent_picker_controller.cc
diff --git a/chrome/browser/ui/intents/web_intent_picker_controller.cc b/chrome/browser/ui/intents/web_intent_picker_controller.cc
index 90788a3b2c4a38591010c60ed75570a493aa4b19..c362cc767bbaad6ea8a748c68026f358ac76accc 100644
--- a/chrome/browser/ui/intents/web_intent_picker_controller.cc
+++ b/chrome/browser/ui/intents/web_intent_picker_controller.cc
@@ -690,6 +690,24 @@ void WebIntentPickerController::OnIntentDataArrived() {
     OnPickerEvent(kPickerEventAsyncDataComplete);
 }
 
+void WebIntentPickerController::Reset() {
+  // Abandon all callbacks.
+  weak_ptr_factory_.InvalidateWeakPtrs();
+  timer_factory_.InvalidateWeakPtrs();
+
+  // Reset state associated with callbacks.
+  pending_async_count_ = 0;
+  pending_registry_calls_count_ = 0;
+  pending_cws_request_ = false;
+
+  // Reset picker.
+  picker_model_.reset(new WebIntentPickerModel());
+  picker_shown_ = false;
+
+  DCHECK(tab_contents_);
+  tab_contents_->constrained_window_tab_helper()->BlockTabContent(false);
+}
+
 // static
 void WebIntentPickerController::DecodeExtensionIconAndResize(
     scoped_ptr<std::string> icon_response,
@@ -862,8 +880,7 @@ void WebIntentPickerController::SetDialogState(WebIntentPickerState state) {
       break;
 
     case kPickerHidden:
-      // Once the picker dialog is closed, abandon all pending callbacks.
-      weak_ptr_factory_.InvalidateWeakPtrs();
+      Reset();
       break;
 
     default: