aura: Add support for touch events.

Among the changes:
. Add touch event handling in EventFilter. Be default, activates a window on TOUCH_START (like for MOUSE_PRESSED).
. Move TouchEvent details functions into ui/. Moved the X11 implementations from views/ to ui/. NOTIMPLEMENTED on windows.
. Disable RWHVAura et. al. for touchui for now (they are still compiled in, but not used).

BUG=100269
TEST=none

Review URL: http://codereview.chromium.org/8274025

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@105816 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 0 deletions

diff --git a/ui/aura/root_window.h b/ui/aura/root_window.h
index 1fea6f3..98cce7d 100644
--- a/ui/aura/root_window.h
+++ b/ui/aura/root_window.h
@@ -11,7 +11,9 @@
 
 namespace aura {
 
+class KeyEvent;
 class MouseEvent;
+class TouchEvent;
 
 namespace internal {
 
@@ -29,6 +31,9 @@ class RootWindow : public Window,
   // Handles a key event. Returns true if handled.
   bool HandleKeyEvent(const KeyEvent& event);
 
+  // Handles a touch event. Returns true if handled.
+  bool HandleTouchEvent(const TouchEvent& event);
+
   // Sets capture to the specified window.
   void SetCapture(Window* window);
 
@@ -67,6 +72,7 @@ class RootWindow : public Window,
   Window* mouse_moved_handler_;
   Window* focused_window_;
   Window* capture_window_;
+  Window* touch_event_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(RootWindow);
 };