Prevent maximize/minimize/fullscreen-ize window in trusted pinned mode.

ash/common/wm/window_state.cc

 // Copyright 2013 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/wm/window_state.h"
 
 #include <utility>
 
 #include "ash/common/wm/default_state.h"
 #include "ash/common/wm/window_positioning_utils.h"
@@ skipping 69 matching lines @@
 bool WindowState::IsSnapped() const {
   return GetStateType() == WINDOW_STATE_TYPE_LEFT_SNAPPED ||
          GetStateType() == WINDOW_STATE_TYPE_RIGHT_SNAPPED;
 }
 
 bool WindowState::IsPinned() const {
   return GetStateType() == WINDOW_STATE_TYPE_PINNED ||
          GetStateType() == WINDOW_STATE_TYPE_TRUSTED_PINNED;
 }
 
+bool WindowState::IsTrustedPinned() const {
+  return GetStateType() == WINDOW_STATE_TYPE_TRUSTED_PINNED;
+}
+
 bool WindowState::IsNormalStateType() const {
   return GetStateType() == WINDOW_STATE_TYPE_NORMAL ||
          GetStateType() == WINDOW_STATE_TYPE_DEFAULT;
 }
 
 bool WindowState::IsNormalOrSnapped() const {
   return IsNormalStateType() || IsSnapped();
 }
 
 bool WindowState::IsActive() const {
@@ skipping 286 matching lines @@
   if (!window_->GetTargetVisibility()) {
     SetBoundsConstrained(new_bounds);
     return;
   }
 
   window_->SetBoundsDirectCrossFade(new_bounds);
 }
 
 }  // namespace wm
 }  // namespace ash