Add workspace to desktop

ui/aura_shell/workspace/workspace.h

Index: ui/aura_shell/workspace/workspace.h
diff --git a/ui/aura_shell/workspace/workspace.h b/ui/aura_shell/workspace/workspace.h
index 6bd4bb879c109b06e7554e842416642e2149d1a3..136c88bc24ee9dfef4a62e3ef880edaa081e94cf 100644
--- a/ui/aura_shell/workspace/workspace.h
+++ b/ui/aura_shell/workspace/workspace.h
@@ -20,15 +20,13 @@ namespace aura_shell {
 class WorkspaceManager;
 class WorkspaceTest;
 
-// A workspace is a partial area of the entire desktop that is visible to
-// a user at a given time. The size of workspace is generally same as
-// the size of the monitor, and the desktiop can have multiple workspaces.
-//  One workspace can contains limited number of windows and
-// the workspace manager may create new workspace if there is
-// no room for new windowk.
-//
-// TODO(oshima): Add a work area bounds for workspace. It will be used to
-// limit the resize, layout and as bounds for a maximized window.
+// A workspace is a partial area of the entire desktop (viewport) that
+// is visible to the user at a given time. The size of the workspace is
+// generally the same as the size of the monitor, and the desktop can
+// have multiple workspaces.
+// A workspace contains a limited number of windows and the workspace
+// manager may create a new workspace if there is not enough room for
+// a new window.
 class AURA_SHELL_EXPORT Workspace {
  public:
   explicit Workspace(WorkspaceManager* manager);
@@ -41,6 +39,10 @@ class AURA_SHELL_EXPORT Workspace {
   const gfx::Rect& bounds() { return bounds_; }
   void SetBounds(const gfx::Rect& bounds);
 
+  // Returns the work area bounds of this workspace in viewport
+  // coordinates.
+  gfx::Rect GetWorkAreaBounds() const;
+
   // Adds the |window| at the position after the window |after|.  It
   // inserts at the end if |after| is NULL. Return true if the
   // |window| was successfully added to this workspace, or false if it
@@ -56,6 +58,10 @@ class AURA_SHELL_EXPORT Workspace {
   // Activates this workspace.
   void Activate();
 
+  // Layout windows. Moving animation is applied to all windows except
+  // for the window specified by |no_animation|.
+  void Layout(aura::Window* no_animation);
+
  private:
   FRIEND_TEST_ALL_PREFIXES(WorkspaceTest, WorkspaceBasic);
 
@@ -65,6 +71,12 @@ class AURA_SHELL_EXPORT Workspace {
   // Returns true if the given |window| can be added to this workspace.
   bool CanAdd(aura::Window* window) const;
 
+  // Moves |window| to the given point. It performs animation when
+  // |animate| is true.
+  void MoveWindowTo(aura::Window* window,
+                    const gfx::Point& origin,
+                    bool animate);
+
   WorkspaceManager* workspace_manager_;
 
   gfx::Rect bounds_;