Remove root window from screen_ash

BUG=123160
TEST=none


Review URL: https://chromiumcodereview.appspot.com/10533041

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@141176 0039d316-1c4b-4281-b951-d872f2087c98

ash/screen_ash.cc

@@ -21,8 +21,7 @@ aura::MonitorManager* GetMonitorManager() {
 }
 }  // namespace
 
-ScreenAsh::ScreenAsh(aura::RootWindow* root_window)
-    : root_window_(root_window) {
+ScreenAsh::ScreenAsh() {
 }
 
 ScreenAsh::~ScreenAsh() {
@@ -30,21 +29,29 @@ ScreenAsh::~ScreenAsh() {
 
 // static
 gfx::Rect ScreenAsh::GetMaximizedWindowBounds(aura::Window* window) {
-  return Shell::GetInstance()->shelf()->GetMaximizedWindowBounds(window);
+  if (window->GetRootWindow() == Shell::GetPrimaryRootWindow())
+    return Shell::GetInstance()->shelf()->GetMaximizedWindowBounds(window);
+  else
+    return gfx::Screen::GetMonitorNearestWindow(window).bounds();
 }
 
 // static
 gfx::Rect ScreenAsh::GetUnmaximizedWorkAreaBounds(aura::Window* window) {
-  return Shell::GetInstance()->shelf()->GetUnmaximizedWorkAreaBounds(window);
+  if (window->GetRootWindow() == Shell::GetPrimaryRootWindow())
+    return Shell::GetInstance()->shelf()->GetUnmaximizedWorkAreaBounds(window);
+  else
+    return gfx::Screen::GetMonitorNearestWindow(window).work_area();
 }
 
 gfx::Point ScreenAsh::GetCursorScreenPoint() {
-  return root_window_->last_mouse_location();
+  // TODO(oshima): Support multiple root window.
+  return Shell::GetPrimaryRootWindow()->last_mouse_location();
 }
 
 gfx::NativeWindow ScreenAsh::GetWindowAtCursorScreenPoint() {
   const gfx::Point point = gfx::Screen::GetCursorScreenPoint();
-  return root_window_->GetTopWindowContainingPoint(point);
+  // TODO(oshima): convert point to relateive to the root window.
+  return Shell::GetRootWindowAt(point)->GetTopWindowContainingPoint(point);
 }
 
 int ScreenAsh::GetNumMonitors() {

ash/screen_ash.h

@@ -12,17 +12,13 @@
 #include "ui/gfx/rect.h"
 #include "ui/gfx/screen_impl.h"
 
-namespace aura {
-class RootWindow;
-}
-
 namespace ash {
 
 // Aura implementation of gfx::Screen. Implemented here to avoid circular
 // dependencies.
 class ASH_EXPORT ScreenAsh : public gfx::ScreenImpl {
  public:
-  explicit ScreenAsh(aura::RootWindow* root_window);
+  ScreenAsh();
   virtual ~ScreenAsh();
 
   // Returns the bounds for maximized windows. Maximized windows trigger
@@ -44,8 +40,6 @@ class ASH_EXPORT ScreenAsh : public gfx::ScreenImpl {
   virtual gfx::Monitor GetPrimaryMonitor() const OVERRIDE;
 
  private:
-  aura::RootWindow* root_window_;
-
   DISALLOW_COPY_AND_ASSIGN(ScreenAsh);
 };
 

ash/shell.cc

@@ -553,7 +553,7 @@ internal::WorkspaceController* Shell::TestApi::workspace_controller() {
 
 Shell::Shell(ShellDelegate* delegate)
     : root_window_(aura::MonitorManager::CreateRootWindowForPrimaryMonitor()),
-      screen_(new ScreenAsh(root_window_.get())),
+      screen_(new ScreenAsh),
       env_filter_(NULL),
       delegate_(delegate),
 #if defined(OS_CHROMEOS)