Add WindowPinType property on arua::Window

ui/views/mus/desktop_window_tree_host_mus.cc

 // Copyright 2016 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/mus/desktop_window_tree_host_mus.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 535 matching lines @@
   return is_active_;
 }
 
 void DesktopWindowTreeHostMus::Maximize() {
   window()->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_MAXIMIZED);
 }
 void DesktopWindowTreeHostMus::Minimize() {
   window()->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_MINIMIZED);
 }
 
+void DesktopWindowTreeHostMus::Pin(bool trusted) {
+  aura::client::WindowPinType type =
+      trusted ? aura::client::WindowPinType::TRUSTED_PINNED
+              : aura::client::WindowPinType::PINNED;
+  window()->SetProperty(aura::client::kWindowPinTypeKey, type);
+}
+
 void DesktopWindowTreeHostMus::Restore() {
   window()->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_NORMAL);
 }
 
 bool DesktopWindowTreeHostMus::IsMaximized() const {
   return window()->GetProperty(aura::client::kShowStateKey) ==
          ui::SHOW_STATE_MAXIMIZED;
 }
 
 bool DesktopWindowTreeHostMus::IsMinimized() const {
   return window()->GetProperty(aura::client::kShowStateKey) ==
          ui::SHOW_STATE_MINIMIZED;
 }
 
+bool DesktopWindowTreeHostMus::IsPinned() const {
+  aura::client::WindowPinType type =
+      window()->GetProperty(aura::client::kWindowPinTypeKey);
+  return type == aura::client::WindowPinType::PINNED ||
+         type == aura::client::WindowPinType::TRUSTED_PINNED;
+}
+
 bool DesktopWindowTreeHostMus::HasCapture() const {
   // Capture state is held by DesktopNativeWidgetAura::content_window_.
   // DesktopNativeWidgetAura::HasCapture() calls content_window_->HasCapture(),
   // and this. That means this function can always return true.
   return true;
 }
 
 void DesktopWindowTreeHostMus::SetAlwaysOnTop(bool always_on_top) {
   window()->SetProperty(aura::client::kAlwaysOnTopKey, always_on_top);
 }
@@ skipping 215 matching lines @@
     aura::client::FocusClient* focus_client,
     aura::Window* window) {
   if (window == this->window()) {
     desktop_native_widget_aura_->HandleActivationChanged(true);
   } else if (is_active_) {
     desktop_native_widget_aura_->HandleActivationChanged(false);
   }
 }
 
 }  // namespace views