Introdcue AshWindowTreeHost and move ash/chrome specific code in WTH to ash.

Other notable changes:
* Removed WindowTreeHostFactory as this is no longer necessary.
* Moved RootWindowTransformer to ash/host
* Removed Set/GetInsets which are no longer necessary (a code in SetInsets is now a part of
SetRootWindowTransformer)
* Added TransformerHelper that implements common behavior to transform root window for AshWindowTreeHost
* Added DEPS files
* Updated metro_viewer code to make sure it creates ash::AshRemoteWindowHostTree

A few more simplifications to come:
* Simplify RootWindowTransformer
* Eliminate EnvObserver in AshWindowTreeHostX11

I'll also work on DEPS reorg to make it more explicit under ash/

BUG=355771
TEST=No functional change. ui/aura/window_tree_host_x11_unittests has been moved to ash/host/ash_window_tree_host_x11_unittests

Review URL: https://codereview.chromium.org/201573015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@263192 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 3 insertions, 2 deletions

diff --git a/ash/accelerators/accelerator_controller.cc b/ash/accelerators/accelerator_controller.cc
index 17b260e..1d4455a 100644
--- a/ash/accelerators/accelerator_controller.cc
+++ b/ash/accelerators/accelerator_controller.cc
@@ -18,6 +18,7 @@
 #include "ash/display/display_manager.h"
 #include "ash/focus_cycler.h"
 #include "ash/gpu_support.h"
+#include "ash/host/ash_window_tree_host.h"
 #include "ash/ime_control_delegate.h"
 #include "ash/magnifier/magnification_controller.h"
 #include "ash/magnifier/partial_magnification_controller.h"
@@ -498,7 +499,7 @@ bool HandleToggleFullscreen(ui::KeyboardCode key_code) {
 }
 
 bool HandleToggleRootWindowFullScreen() {
-  Shell::GetPrimaryRootWindow()->GetHost()->ToggleFullScreen();
+  Shell::GetPrimaryRootWindowController()->ash_host()->ToggleFullScreen();
   return true;
 }
 
@@ -725,7 +726,7 @@ bool HandlePrintWindowHierarchy() {
   for (size_t i = 0; i < controllers.size(); ++i) {
     std::ostringstream out;
     out << "RootWindow " << i << ":\n";
-    PrintWindowHierarchy(controllers[i]->root_window(), 0, &out);
+    PrintWindowHierarchy(controllers[i]->GetRootWindow(), 0, &out);
     // Error so logs can be collected from end-users.
     LOG(ERROR) << out.str();
   }