ash: Add RootWindowHostFactory class.

This provides a mechanism for creating a RootWindowHost to use in place
of the default one that aura::RootWindow will create. This is exposed
to consumers of ash through the addition of the CreateRootWindowHostFactory
function to the ShellDelegate interface.

BUG=124444
TEST=ash_unittests

Review URL: https://chromiumcodereview.appspot.com/11360045

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@173080 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 5 insertions, 0 deletions

diff --git a/ash/shell_delegate.h b/ash/shell_delegate.h
index 96064e5..e6fc43f 100644
--- a/ash/shell_delegate.h
+++ b/ash/shell_delegate.h
@@ -41,6 +41,7 @@ class CapsLockDelegate;
 class LauncherDelegate;
 class LauncherModel;
 struct LauncherItem;
+class RootWindowHostFactory;
 class SystemTrayDelegate;
 class UserWallpaperDelegate;
 
@@ -218,6 +219,10 @@ class ASH_EXPORT ShellDelegate {
   // True if the user's preferences have the Search key acting as a Function key
   // modifier for accessing extended keyboard shortcuts.
   virtual bool IsSearchKeyActingAsFunctionKey() const = 0;
+
+  // Creates a root window host factory. Shell takes ownership of the returned
+  // value.
+  virtual RootWindowHostFactory* CreateRootWindowHostFactory() = 0;
 };
 
 }  // namespace ash