Enable display rotation, magnifier in unified desktop mode

ash/host/ash_window_tree_host_unified.cc

 // Copyright 2015 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/host/ash_window_tree_host_unified.h"
 #include "ash/host/root_window_transformer.h"
 #include "base/logging.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/aura/window_targeter.h"
@@ skipping 29 matching lines @@
   }
 
   aura::Window* src_root_;
   aura::Window* dst_root_;
 
   DISALLOW_COPY_AND_ASSIGN(UnifiedEventTargeter);
 };
 
 AshWindowTreeHostUnified::AshWindowTreeHostUnified(
     const gfx::Rect& initial_bounds)
-    : bounds_(gfx::Rect(initial_bounds.size())) {
+    : bounds_(gfx::Rect(initial_bounds.size())), transformer_helper_(this) {
   CreateCompositor(GetAcceleratedWidget());
+  transformer_helper_.Init();

[oshima, 2015/05/01 04:11:18]

Initialize transformer_helper requires window(), which is created in
CreateCompositor().

 }
 
 AshWindowTreeHostUnified::~AshWindowTreeHostUnified() {
   DestroyCompositor();
   DestroyDispatcher();
 }
 
 void AshWindowTreeHostUnified::PrepareForShutdown() {
   window()->SetEventTargeter(
       scoped_ptr<ui::EventTargeter>(new ui::NullEventTargeter));
@@ skipping 18 matching lines @@
 
 bool AshWindowTreeHostUnified::ConfineCursorToRootWindow() {
   return true;
 }
 
 void AshWindowTreeHostUnified::UnConfineCursor() {
 }
 
 void AshWindowTreeHostUnified::SetRootWindowTransformer(
     scoped_ptr<RootWindowTransformer> transformer) {
-  // TODO(oshima): Find out if this is neceessary.
-  NOTIMPLEMENTED();
+  transformer_helper_.SetRootWindowTransformer(transformer.Pass());
 }
 
 gfx::Insets AshWindowTreeHostUnified::GetHostInsets() const {
-  return gfx::Insets();
+  return transformer_helper_.GetHostInsets();
 }
 
 aura::WindowTreeHost* AshWindowTreeHostUnified::AsWindowTreeHost() {
   return this;
 }
 
 ui::EventSource* AshWindowTreeHostUnified::GetEventSource() {
   return this;
 }
 
@@ skipping 11 matching lines @@
   return bounds_;
 }
 
 void AshWindowTreeHostUnified::SetBounds(const gfx::Rect& bounds) {
   if (bounds_.size() == bounds.size())
     return;
   bounds_.set_size(bounds.size());
   OnHostResized(bounds_.size());
 }
 
+gfx::Transform AshWindowTreeHostUnified::GetRootTransform() const {
+  return transformer_helper_.GetTransform();
+}
+
+void AshWindowTreeHostUnified::SetRootTransform(
+    const gfx::Transform& transform) {
+  transformer_helper_.SetTransform(transform);
+}
+
+gfx::Transform AshWindowTreeHostUnified::GetInverseRootTransform() const {
+  return transformer_helper_.GetInverseTransform();
+}
+
+void AshWindowTreeHostUnified::UpdateRootWindowSize(
+    const gfx::Size& host_size) {
+  transformer_helper_.UpdateWindowSize(host_size);
+}
+
 void AshWindowTreeHostUnified::SetCapture() {
 }
 
 void AshWindowTreeHostUnified::ReleaseCapture() {
 }
 
 gfx::Point AshWindowTreeHostUnified::GetLocationOnNativeScreen() const {
   return gfx::Point();
 }
 
@@ skipping 21 matching lines @@
   DCHECK(iter != mirroring_hosts_.end());
   window->RemoveObserver(this);
   mirroring_hosts_.erase(iter);
 }
 
 ui::EventProcessor* AshWindowTreeHostUnified::GetEventProcessor() {
   return dispatcher();
 }
 
 }  // namespace ash