Open the WrenchMenu on mouseover when dragging a browser action

ui/views/controls/menu/menu_controller.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/controls/menu/menu_controller.h"
 
 #include "base/i18n/case_conversion.h"
 #include "base/i18n/rtl.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
@@ skipping 272 matching lines @@
 MenuController* MenuController::GetActiveInstance() {
   return active_instance_;
 }
 
 MenuItemView* MenuController::Run(Widget* parent,
                                   MenuButton* button,
                                   MenuItemView* root,
                                   const gfx::Rect& bounds,
                                   MenuAnchorPosition position,
                                   bool context_menu,
+                                  bool is_nested_drag,
                                   int* result_event_flags) {
   exit_type_ = EXIT_NONE;
   possible_drag_ = false;
   drag_in_progress_ = false;
   did_initiate_drag_ = false;
   closing_event_time_ = base::TimeDelta();
   menu_start_time_ = base::TimeTicks::Now();
   menu_start_mouse_press_loc_ = gfx::Point();
 
   // If we are shown on mouse press, we will eat the subsequent mouse down and
@@ skipping 38 matching lines @@
   if (owner_)
     owner_->RemoveObserver(this);
   owner_ = parent;
   if (owner_)
     owner_->AddObserver(this);
 
   // Set the selection, which opens the initial menu.
   SetSelection(root, SELECTION_OPEN_SUBMENU | SELECTION_UPDATE_IMMEDIATELY);
 
   if (!blocking_run_) {
-    // Start the timer to hide the menu. This is needed as we get no
-    // notification when the drag has finished.
-    StartCancelAllTimer();
+    if (!is_nested_drag) {
+      // Start the timer to hide the menu. This is needed as we get no
+      // notification when the drag has finished.
+      StartCancelAllTimer();
+    }
     return NULL;
   }
 
   if (button)
     menu_button_ = button;
 
   // Make sure Chrome doesn't attempt to shut down while the menu is showing.
   if (ViewsDelegate::views_delegate)
     ViewsDelegate::views_delegate->AddRef();
 
@@ skipping 444 matching lines @@
   }
 }
 
 void MenuController::OnWidgetDestroying(Widget* widget) {
   DCHECK_EQ(owner_, widget);
   owner_->RemoveObserver(this);
   owner_ = NULL;
   message_loop_->ClearOwner();
 }
 
+bool MenuController::IsCancelAllTimerRunningForTest() {
+  return cancel_all_timer_.IsRunning();
+}
+
 // static
 void MenuController::TurnOffMenuSelectionHoldForTest() {
   menu_selection_hold_time_ms = -1;
 }
 
 void MenuController::SetSelection(MenuItemView* menu_item,
                                   int selection_types) {
   size_t paths_differ_at = 0;
   std::vector<MenuItemView*> current_path;
   std::vector<MenuItemView*> new_path;
@@ skipping 1471 matching lines @@
   }
 }
 
 gfx::Screen* MenuController::GetScreen() {
   Widget* root = owner_ ? owner_->GetTopLevelWidget() : NULL;
   return root ? gfx::Screen::GetScreenFor(root->GetNativeView())
               : gfx::Screen::GetNativeScreen();
 }
 
 }  // namespace views