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

ash/DEPS

@@ -14,4 +14,11 @@ include_rules = [
   "+net",
   "+ui",
   "+win8",
+  "-ash/host",
 ]
+
+specific_include_rules = {
+  "root_window_controller\.*": [
+    "+ash/host"
+  ],
+}

ash/accelerators/DEPS

@@ -0,0 +1,5 @@
+specific_include_rules = {
+  "accelerator_controller\.cc": [
+    "+ash/host"
+  ],
+}

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();
   }

ash/ash.gyp

@@ -184,8 +184,8 @@
         'frame/frame_border_hit_test_controller.h',
         'frame/default_header_painter.cc',
         'frame/default_header_painter.h',
-	    'frame/frame_util.cc',
-	    'frame/frame_util.h',
+        'frame/frame_util.cc',
+        'frame/frame_util.h',
         'frame/header_painter.h',
         'frame/header_painter_util.cc',
         'frame/header_painter_util.h',
@@ -194,9 +194,16 @@
         'gpu_support_stub.h',
         'high_contrast/high_contrast_controller.cc',
         'high_contrast/high_contrast_controller.h',
-        'host/window_tree_host_factory.cc',
-        'host/window_tree_host_factory.h',
-        'host/window_tree_host_factory_win.cc',
+        'host/ash_remote_window_tree_host_win.cc',
+        'host/ash_remote_window_tree_host_win.h',
+        'host/ash_window_tree_host.h',
+        'host/ash_window_tree_host_ozone.cc',
+        'host/ash_window_tree_host_win.cc',
+        'host/ash_window_tree_host_x11.cc',
+        'host/ash_window_tree_host_x11.h',
+        'host/root_window_transformer.h',
+        'host/transformer_helper.cc',
+        'host/transformer_helper.h',
         'ime/candidate_view.cc',
         'ime/candidate_view.h',
         'ime/candidate_window_view.cc',
@@ -696,6 +703,10 @@
             ['exclude', 'accelerators/spoken_feedback_toggler.cc'],
             ['exclude', 'accelerators/spoken_feedback_toggler.h'],
           ],
+        }, { # else: use_x11==1
+          'dependencies': [
+            '../build/linux/system.gyp:xfixes',
+           ],
         }],
         ['chromeos==1', {
           'dependencies': [
@@ -912,6 +923,7 @@
         'frame/caption_buttons/frame_maximize_button_unittest.cc',
         'frame/custom_frame_view_ash_unittest.cc',
         'frame/default_header_painter_unittest.cc',
+        'host/ash_window_tree_host_x11_unittest.cc',
         'ime/candidate_window_view_unittest.cc',
         'ime/input_method_menu_item_unittest.cc',
         'ime/input_method_menu_manager_unittest.cc',

ash/cancel_mode.cc

@@ -15,7 +15,7 @@ void DispatchCancelMode() {
       Shell::GetAllRootWindowControllers());
   for (Shell::RootWindowControllerList::const_iterator i = controllers.begin();
        i != controllers.end(); ++i) {
-    (*i)->host()->dispatcher()->DispatchCancelModeEvent();
+    (*i)->GetHost()->dispatcher()->DispatchCancelModeEvent();
   }
 }
 

ash/desktop_background/desktop_background_controller.cc

@@ -258,10 +258,10 @@ bool DesktopBackgroundController::ReparentBackgroundWidgets(int src_container,
     DesktopBackgroundWidgetController* desktop_controller =
         root_window_controller->wallpaper_controller();
     if (desktop_controller) {
-      moved |= desktop_controller->Reparent(
-          root_window_controller->root_window(),
-          src_container,
-          dst_container);
+      moved |=
+          desktop_controller->Reparent(root_window_controller->GetRootWindow(),
+                                       src_container,
+                                       dst_container);
     }
     // During desktop show animations the controller lives in
     // AnimatingDesktopController owned by RootWindowController.
@@ -275,7 +275,7 @@ bool DesktopBackgroundController::ReparentBackgroundWidgets(int src_container,
         NULL;
     if (animating_controller) {
       moved |= animating_controller->Reparent(
-          root_window_controller->root_window(),
+          root_window_controller->GetRootWindow(),
           src_container,
           dst_container);
     }

ash/display/DEPS

@@ -0,0 +1,4 @@
+include_rules = [
+  "+ash/host",
+]
+

ash/display/cursor_window_controller.cc

@@ -117,9 +117,10 @@ void CursorWindowController::UpdateContainer() {
   if (is_cursor_compositing_enabled_) {
     SetDisplay(display_);
   } else {
-    aura::WindowTreeHost* mirror_host = Shell::GetInstance()->
-        display_controller()->mirror_window_controller()->host();
-    SetContainer(mirror_host ? mirror_host->window() : NULL);
+    SetContainer(Shell::GetInstance()->
+                 display_controller()->
+                 mirror_window_controller()->
+                 GetWindow());
   }
 }