Add ability to change display orientation on Ozone

ash/host/ash_window_tree_host_ozone.cc

Index: ash/host/ash_window_tree_host_ozone.cc
diff --git a/ash/host/ash_window_tree_host_ozone.cc b/ash/host/ash_window_tree_host_ozone.cc
index cfe8b25d336d93499e67c4bfb9bf9c27e970a091..8fe2ba585469296857f175c6f8fffe5b842ebabc 100644
--- a/ash/host/ash_window_tree_host_ozone.cc
+++ b/ash/host/ash_window_tree_host_ozone.cc
@@ -5,9 +5,11 @@
 #include "ash/host/ash_window_tree_host.h"
 
 #include "ash/host/root_window_transformer.h"
+#include "ash/host/transformer_helper.h"
 #include "base/command_line.h"
 #include "ui/aura/window_tree_host_ozone.h"
 #include "ui/gfx/geometry/insets.h"
+#include "ui/gfx/transform.h"
 
 namespace ash {
 namespace {
@@ -15,22 +17,75 @@ namespace {
 class AshWindowTreeHostOzone : public AshWindowTreeHost,
                                public aura::WindowTreeHostOzone {
  public:
-  explicit AshWindowTreeHostOzone(const gfx::Rect& initial_bounds)
-      : aura::WindowTreeHostOzone(initial_bounds) {}
-  virtual ~AshWindowTreeHostOzone() {}
+  explicit AshWindowTreeHostOzone(const gfx::Rect& initial_bounds);
+  virtual ~AshWindowTreeHostOzone();
 
  private:
   // AshWindowTreeHost:
-  virtual void ToggleFullScreen() OVERRIDE { NOTIMPLEMENTED(); }
-  virtual bool ConfineCursorToRootWindow() OVERRIDE { return false; }
-  virtual void UnConfineCursor() OVERRIDE { NOTIMPLEMENTED(); }
+  virtual void ToggleFullScreen() OVERRIDE;
+  virtual bool ConfineCursorToRootWindow() OVERRIDE;
+  virtual void UnConfineCursor() OVERRIDE;
   virtual void SetRootWindowTransformer(
-      scoped_ptr<RootWindowTransformer> transformer) OVERRIDE {}
-  virtual aura::WindowTreeHost* AsWindowTreeHost() OVERRIDE { return this; }
+      scoped_ptr<RootWindowTransformer> transformer) OVERRIDE;
+  virtual gfx::Insets GetHostInsets() const OVERRIDE;
+  virtual aura::WindowTreeHost* AsWindowTreeHost() OVERRIDE;
+  virtual void SetRootTransform(const gfx::Transform& transform) OVERRIDE;
+  virtual gfx::Transform GetRootTransform() const OVERRIDE;
+  virtual gfx::Transform GetInverseRootTransform() const OVERRIDE;
+  virtual void UpdateRootWindowSize(const gfx::Size& host_size) OVERRIDE;
+
+  TransformerHelper transformer_helper_;
 
   DISALLOW_COPY_AND_ASSIGN(AshWindowTreeHostOzone);
 };
 
+AshWindowTreeHostOzone::AshWindowTreeHostOzone(const gfx::Rect& initial_bounds)
+    : aura::WindowTreeHostOzone(initial_bounds),
+      transformer_helper_(this) {}
+
+AshWindowTreeHostOzone::~AshWindowTreeHostOzone() {}
+
+void AshWindowTreeHostOzone::ToggleFullScreen() {
+  NOTIMPLEMENTED();
+}
+
+bool AshWindowTreeHostOzone::ConfineCursorToRootWindow() {
+  return false;
+}
+
+void AshWindowTreeHostOzone::UnConfineCursor() {
+  NOTIMPLEMENTED();
+}
+
+void AshWindowTreeHostOzone::SetRootWindowTransformer(
+    scoped_ptr<RootWindowTransformer> transformer) {
+  transformer_helper_.SetRootWindowTransformer(transformer.Pass());
+}
+
+gfx::Insets AshWindowTreeHostOzone::GetHostInsets() const {
+  return transformer_helper_.GetHostInsets();
+}
+
+aura::WindowTreeHost* AshWindowTreeHostOzone::AsWindowTreeHost() {
+  return this;
+}
+
+void AshWindowTreeHostOzone::SetRootTransform(const gfx::Transform& transform) {
+  transformer_helper_.GetTransform();
+}
+
+gfx::Transform AshWindowTreeHostOzone::GetRootTransform() const {
+  return transformer_helper_.GetTransform();
+}
+
+gfx::Transform AshWindowTreeHostOzone::GetInverseRootTransform() const {
+  return transformer_helper_.GetInverseTransform();
+}
+
+void AshWindowTreeHostOzone::UpdateRootWindowSize(const gfx::Size& host_size) {
+  transformer_helper_.UpdateWindowSize(host_size);
+}
+
 }  // namespace
 
 AshWindowTreeHost* AshWindowTreeHost::Create(const gfx::Rect& initial_bounds) {