Add WM_EVENT_TRUSTED_PIN and WINDOW_STATE_TYPE_TRUSTED_PINNED to Ash.

ash/shelf/shelf_layout_manager_unittest.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 "ash/common/shelf/shelf_layout_manager.h"
 
 #include "ash/aura/wm_shelf_aura.h"
 #include "ash/aura/wm_window_aura.h"
 #include "ash/common/accelerators/accelerator_controller.h"
 #include "ash/common/accelerators/accelerator_table.h"
@@ skipping 1443 matching lines @@
 // Test for Pinned mode.
 TEST_F(ShelfLayoutManagerTest, PinnedWindowHidesShelf) {
   WmShelf* shelf = GetPrimaryShelf();
 
   aura::Window* window1 = CreateTestWindow();
   window1->SetBounds(gfx::Rect(0, 0, 100, 100));
   window1->Show();
 
   EXPECT_EQ(SHELF_VISIBLE, shelf->GetVisibilityState());
 
-  wm::PinWindow(window1);
+  wm::PinWindow(window1, /* trusted */ false);
   EXPECT_EQ(SHELF_HIDDEN, shelf->GetVisibilityState());
 
   WmWindowAura::Get(window1)->GetWindowState()->Restore();
   EXPECT_EQ(SHELF_VISIBLE, shelf->GetVisibilityState());
 }
 
 // Tests SHELF_ALIGNMENT_(LEFT, RIGHT).
 TEST_F(ShelfLayoutManagerTest, SetAlignment) {
   WmShelf* shelf = GetPrimaryShelf();
   ShelfLayoutManager* layout_manager = GetShelfLayoutManager();
@@ skipping 601 matching lines @@
   // Open keyboard in sticky mode.
   kb_controller->ShowKeyboard(true);
   layout_manager->OnKeyboardBoundsChanging(keyboard_bounds());
 
   // Work area should be changed.
   EXPECT_NE(orig_work_area,
             display::Screen::GetScreen()->GetPrimaryDisplay().work_area());
 }
 
 }  // namespace ash