events: Make platform specific events code into ui/events/.

Notable changes:
 * Move events_win and events_x from ui/base/ into ui/events/
 * Move DeviceDataManager, and DeviceListCache into ui/events/
 * Move X11AtomCache from ui/base/x into ui/gfx/x
 * Move some X11 util functions from ui/base/ into ui/events/

BUG=none
R=ben@chromium.org

Review URL: https://codereview.chromium.org/24482004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225163 0039d316-1c4b-4281-b951-d872f2087c98

42 files changed, 199 insertions, 198 deletions

diff --git a/ash/accelerators/accelerator_controller_unittest.cc b/ash/accelerators/accelerator_controller_unittest.cc
index 3bbd862..478a9e7 100644
--- a/ash/accelerators/accelerator_controller_unittest.cc
+++ b/ash/accelerators/accelerator_controller_unittest.cc
@@ -27,7 +27,7 @@
 
 #if defined(USE_X11)
 #include <X11/Xlib.h>
-#include "ui/base/x/x11_util.h"
+#include "ui/events/x/events_x_utils.h"
 #endif
 
 namespace ash {
diff --git a/ash/accelerators/nested_dispatcher_controller_unittest.cc b/ash/accelerators/nested_dispatcher_controller_unittest.cc
index 4c07232..955630c 100644
--- a/ash/accelerators/nested_dispatcher_controller_unittest.cc
+++ b/ash/accelerators/nested_dispatcher_controller_unittest.cc
@@ -20,7 +20,7 @@
 
 #if defined(USE_X11)
 #include <X11/Xlib.h>
-#include "ui/base/x/x11_util.h"
+#include "ui/events/x/events_x_utils.h"
 #endif  // USE_X11
 
 namespace ash {
diff --git a/ash/touch/touch_hud_debug.cc b/ash/touch/touch_hud_debug.cc
index e46b303..921c31c6 100644
--- a/ash/touch/touch_hud_debug.cc
+++ b/ash/touch/touch_hud_debug.cc
@@ -27,7 +27,7 @@
 #include <X11/extensions/XInput2.h>
 #include <X11/Xlib.h>
 
-#include "ui/base/x/device_data_manager.h"
+#include "ui/events/x/device_data_manager.h"
 #endif
 
 namespace ash {
diff --git a/ash/wm/sticky_keys_unittest.cc b/ash/wm/sticky_keys_unittest.cc
index 813fe4e..d9e952f 100644
--- a/ash/wm/sticky_keys_unittest.cc
+++ b/ash/wm/sticky_keys_unittest.cc
@@ -10,7 +10,7 @@
 
 #include "ash/test/ash_test_base.h"
 #include "base/memory/scoped_vector.h"
-#include "ui/base/x/x11_util.h"
+#include "ui/events/x/events_x_utils.h"
 
 namespace ash {
 
diff --git a/chrome/browser/chromeos/device_uma.cc b/chrome/browser/chromeos/device_uma.cc
index 3aee057..487c661 100644
--- a/chrome/browser/chromeos/device_uma.cc
+++ b/chrome/browser/chromeos/device_uma.cc
@@ -10,9 +10,9 @@
 #include "base/logging.h"
 #include "base/memory/singleton.h"
 #include "base/metrics/histogram.h"
-#include "ui/base/x/device_data_manager.h"
 #include "ui/events/event_constants.h"
 #include "ui/events/event_utils.h"
+#include "ui/events/x/device_data_manager.h"
 
 // Enum type for CrOS gesture lib UMA
 enum UMACrosGestureMetricsType{
diff --git a/chrome/browser/chromeos/keyboard_driven_event_rewriter_unittest.cc b/chrome/browser/chromeos/keyboard_driven_event_rewriter_unittest.cc
index 3f4adec..8763eba 100644
--- a/chrome/browser/chromeos/keyboard_driven_event_rewriter_unittest.cc
+++ b/chrome/browser/chromeos/keyboard_driven_event_rewriter_unittest.cc
@@ -7,8 +7,8 @@
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/chromeos/keyboard_driven_event_rewriter.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "ui/base/x/x11_util.h"
 #include "ui/events/event.h"
+#include "ui/events/x/events_x_utils.h"
 
 #include <X11/keysym.h>
 #include <X11/XF86keysym.h>
diff --git a/chrome/browser/ui/ash/event_rewriter_unittest.cc b/chrome/browser/ui/ash/event_rewriter_unittest.cc
index 4dcddf2..15ab9c2 100644
--- a/chrome/browser/ui/ash/event_rewriter_unittest.cc
+++ b/chrome/browser/ui/ash/event_rewriter_unittest.cc
@@ -25,7 +25,7 @@
 #include "chrome/browser/chromeos/preferences.h"
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/ime/mock_xkeyboard.h"
-#include "ui/base/x/x11_util.h"
+#include "ui/events/x/events_x_utils.h"
 #include "ui/gfx/x/x11_types.h"
 
 namespace {
diff --git a/chrome/browser/ui/gtk/apps/native_app_window_gtk.h b/chrome/browser/ui/gtk/apps/native_app_window_gtk.h
index be113a9..1827416 100644
--- a/chrome/browser/ui/gtk/apps/native_app_window_gtk.h
+++ b/chrome/browser/ui/gtk/apps/native_app_window_gtk.h
@@ -15,8 +15,8 @@
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/base/gtk/gtk_signal.h"
 #include "ui/base/x/active_window_watcher_x_observer.h"
-#include "ui/base/x/x11_atom_cache.h"
 #include "ui/gfx/rect.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 
 class ExtensionKeybindingRegistryGtk;
 class Profile;
diff --git a/chrome/browser/ui/views/constrained_window_views_browsertest.cc b/chrome/browser/ui/views/constrained_window_views_browsertest.cc
index 4421cd6..eb08335 100644
--- a/chrome/browser/ui/views/constrained_window_views_browsertest.cc
+++ b/chrome/browser/ui/views/constrained_window_views_browsertest.cc
@@ -34,7 +34,7 @@
 
 #if defined(USE_AURA) && defined(USE_X11)
 #include <X11/Xlib.h>
-#include "ui/base/x/x11_util.h"
+#include "ui/events/x/events_x_utils.h"
 #endif
 
 using web_modal::WebContentsModalDialogManager;
diff --git a/content/browser/renderer_host/web_input_event_aura_unittest.cc b/content/browser/renderer_host/web_input_event_aura_unittest.cc
index 818250c..059ebb2 100644
--- a/content/browser/renderer_host/web_input_event_aura_unittest.cc
+++ b/content/browser/renderer_host/web_input_event_aura_unittest.cc
@@ -11,8 +11,8 @@
 #if defined(USE_X11)
 #include <X11/keysym.h>
 #include <X11/Xlib.h>
+#include "ui/events/x/events_x_utils.h"
 #include "ui/gfx/x/x11_types.h"
-#include "ui/base/x/x11_util.h"
 #endif
 
 namespace content {
diff --git a/content/renderer/render_view_browsertest.cc b/content/renderer/render_view_browsertest.cc
index fc13ec0..4d65606 100644
--- a/content/renderer/render_view_browsertest.cc
+++ b/content/renderer/render_view_browsertest.cc
@@ -51,9 +51,9 @@
 
 #if defined(USE_AURA) && defined(USE_X11)
 #include <X11/Xlib.h>
-#include "ui/base/x/x11_util.h"
 #include "ui/events/event_constants.h"
 #include "ui/events/keycodes/keyboard_code_conversion.h"
+#include "ui/events/x/events_x_utils.h"
 #endif
 
 using WebKit::WebFrame;
diff --git a/ui/aura/root_window_host_x11.cc b/ui/aura/root_window_host_x11.cc
index abf1da0..0bec120 100644
--- a/ui/aura/root_window_host_x11.cc
+++ b/ui/aura/root_window_host_x11.cc
@@ -35,13 +35,14 @@
 #include "ui/base/touch/touch_factory_x11.h"
 #include "ui/base/ui_base_switches.h"
 #include "ui/base/view_prop.h"
-#include "ui/base/x/device_list_cache_x.h"
 #include "ui/base/x/x11_util.h"
 #include "ui/compositor/dip_util.h"
 #include "ui/compositor/layer.h"
 #include "ui/events/event.h"
 #include "ui/events/event_utils.h"
 #include "ui/events/keycodes/keyboard_codes.h"
+#include "ui/events/x/device_data_manager.h"
+#include "ui/events/x/device_list_cache_x.h"
 #include "ui/gfx/screen.h"
 
 #if defined(OS_CHROMEOS)
@@ -566,7 +567,7 @@ bool RootWindowHostX11::Dispatch(const base::NativeEvent& event) {
           delegate_->AsRootWindow()->OnKeyboardMappingChanged();
           break;
         case MappingPointer:
-          ui::UpdateButtonMap();
+          ui::DeviceDataManager::GetInstance()->UpdateButtonMap();
           break;
         default:
           NOTIMPLEMENTED() << " Unknown request: " << xev->xmapping.request;
diff --git a/ui/aura/root_window_host_x11.h b/ui/aura/root_window_host_x11.h
index 77d97b9..91d8bca 100644
--- a/ui/aura/root_window_host_x11.h
+++ b/ui/aura/root_window_host_x11.h
@@ -17,10 +17,10 @@
 #include "ui/aura/aura_export.h"
 #include "ui/aura/env_observer.h"
 #include "ui/aura/root_window_host.h"
-#include "ui/base/x/x11_atom_cache.h"
 #include "ui/base/x/x11_util.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/rect.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 
 namespace ui {
 class MouseEvent;
diff --git a/ui/aura/test/event_generator.cc b/ui/aura/test/event_generator.cc
index ba8392d..ac46df1 100644
--- a/ui/aura/test/event_generator.cc
+++ b/ui/aura/test/event_generator.cc
@@ -448,13 +448,7 @@ void EventGenerator::DispatchKeyEvent(bool is_press,
   TestKeyEvent keyev(native_event, flags, key_press == WM_CHAR);
 #else
   ui::EventType type = is_press ? ui::ET_KEY_PRESSED : ui::ET_KEY_RELEASED;
-#if defined(USE_X11)
-  scoped_ptr<XEvent> native_event(new XEvent);
-  ui::InitXKeyEventForTesting(type, key_code, flags, native_event.get());
-  TestKeyEvent keyev(native_event.get(), flags, false);
-#else
   ui::KeyEvent keyev(type, key_code, flags, false);
-#endif  // USE_X11
 #endif  // OS_WIN
   Dispatch(&keyev);
 }
diff --git a/ui/base/clipboard/clipboard_aurax11.cc b/ui/base/clipboard/clipboard_aurax11.cc
index 5c6ebb8..e8d263e 100644
--- a/ui/base/clipboard/clipboard_aurax11.cc
+++ b/ui/base/clipboard/clipboard_aurax11.cc
@@ -24,10 +24,10 @@
 #include "ui/base/x/selection_owner.h"
 #include "ui/base/x/selection_requestor.h"
 #include "ui/base/x/selection_utils.h"
-#include "ui/base/x/x11_atom_cache.h"
 #include "ui/base/x/x11_util.h"
 #include "ui/gfx/codec/png_codec.h"
 #include "ui/gfx/size.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 
 namespace ui {
 
diff --git a/ui/base/dragdrop/os_exchange_data_provider_aurax11.h b/ui/base/dragdrop/os_exchange_data_provider_aurax11.h
index f55138a..76cfad3 100644
--- a/ui/base/dragdrop/os_exchange_data_provider_aurax11.h
+++ b/ui/base/dragdrop/os_exchange_data_provider_aurax11.h
@@ -19,9 +19,9 @@
 #include "ui/base/x/selection_owner.h"
 #include "ui/base/x/selection_requestor.h"
 #include "ui/base/x/selection_utils.h"
-#include "ui/base/x/x11_atom_cache.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/vector2d.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 #include "url/gurl.h"
 
 namespace ui {
diff --git a/ui/base/touch/touch_factory_x11.cc b/ui/base/touch/touch_factory_x11.cc
index 21fa6a2..4314eed 100644
--- a/ui/base/touch/touch_factory_x11.cc
+++ b/ui/base/touch/touch_factory_x11.cc
@@ -18,7 +18,7 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "ui/base/ui_base_switches.h"
-#include "ui/base/x/device_list_cache_x.h"
+#include "ui/events/x/device_list_cache_x.h"
 #include "ui/gfx/x/x11_types.h"
 
 namespace ui {
diff --git a/ui/base/x/selection_owner.h b/ui/base/x/selection_owner.h
index 6c5c7f8..8cecc62 100644
--- a/ui/base/x/selection_owner.h
+++ b/ui/base/x/selection_owner.h
@@ -16,7 +16,7 @@
 #include "base/callback.h"
 #include "ui/base/ui_export.h"
 #include "ui/base/x/selection_utils.h"
-#include "ui/base/x/x11_atom_cache.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 
 namespace ui {
 
diff --git a/ui/base/x/selection_requestor.h b/ui/base/x/selection_requestor.h
index 318533a..fb6cc1a 100644
--- a/ui/base/x/selection_requestor.h
+++ b/ui/base/x/selection_requestor.h
@@ -16,7 +16,7 @@
 #include "base/callback.h"
 #include "base/memory/ref_counted_memory.h"
 #include "ui/base/ui_export.h"
-#include "ui/base/x/x11_atom_cache.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 
 namespace ui {
 class SelectionData;
diff --git a/ui/base/x/selection_utils.cc b/ui/base/x/selection_utils.cc
index e0f1d9b..b4aac34 100644
--- a/ui/base/x/selection_utils.cc
+++ b/ui/base/x/selection_utils.cc
@@ -10,8 +10,8 @@
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/base/clipboard/clipboard.h"
-#include "ui/base/x/x11_atom_cache.h"
 #include "ui/base/x/x11_util.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 
 namespace ui {
 
diff --git a/ui/base/x/selection_utils.h b/ui/base/x/selection_utils.h
index 609ee9d..c0d7b80 100644
--- a/ui/base/x/selection_utils.h
+++ b/ui/base/x/selection_utils.h
@@ -16,7 +16,7 @@
 #include "base/memory/ref_counted_memory.h"
 #include "ui/base/clipboard/clipboard.h"
 #include "ui/base/ui_export.h"
-#include "ui/base/x/x11_atom_cache.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 
 namespace ui {
 class SelectionData;
diff --git a/ui/base/x/x11_util.cc b/ui/base/x/x11_util.cc
index accd4f9..a02e59d 100644
--- a/ui/base/x/x11_util.cc
+++ b/ui/base/x/x11_util.cc
@@ -35,11 +35,11 @@
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkPostConfig.h"
 #include "ui/base/touch/touch_factory_x11.h"
-#include "ui/base/x/device_data_manager.h"
 #include "ui/base/x/x11_error_tracker.h"
 #include "ui/base/x/x11_util_internal.h"
 #include "ui/events/event_utils.h"
 #include "ui/events/keycodes/keyboard_code_conversion_x.h"
+#include "ui/events/x/device_data_manager.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/image/image_skia_rep.h"
@@ -135,39 +135,6 @@ bool GetProperty(XID window, const std::string& property_name, long max_length,
                             property);
 }
 
-// Converts ui::EventType to XKeyEvent state.
-unsigned int XKeyEventState(int flags) {
-  return
-      ((flags & ui::EF_SHIFT_DOWN) ? ShiftMask : 0) |
-      ((flags & ui::EF_CONTROL_DOWN) ? ControlMask : 0) |
-      ((flags & ui::EF_ALT_DOWN) ? Mod1Mask : 0) |
-      ((flags & ui::EF_CAPS_LOCK_DOWN) ? LockMask : 0);
-}
-
-// Converts EventType to XKeyEvent type.
-int XKeyEventType(ui::EventType type) {
-  switch (type) {
-    case ui::ET_KEY_PRESSED:
-      return KeyPress;
-    case ui::ET_KEY_RELEASED:
-      return KeyRelease;
-    default:
-      return 0;
-  }
-}
-
-// Converts KeyboardCode to XKeyEvent keycode.
-unsigned int XKeyEventKeyCode(ui::KeyboardCode key_code,
-                              int flags,
-                              XDisplay* display) {
-  const int keysym = XKeysymForWindowsKeyCode(key_code,
-                                              flags & ui::EF_SHIFT_DOWN);
-  // Tests assume the keycode for XK_less is equal to the one of XK_comma,
-  // but XKeysymToKeycode returns 94 for XK_less while it returns 59 for
-  // XK_comma. Here we convert the value for XK_less to the value for XK_comma.
-  return (keysym == XK_less) ? 59 : XKeysymToKeycode(display, keysym);
-}
-
 // A process wide singleton that manages the usage of X cursors.
 class XCursorCache {
  public:
@@ -284,36 +251,6 @@ class XCustomCursorCache {
 };
 #endif  // defined(USE_AURA)
 
-// A singleton object that remembers remappings of mouse buttons.
-class XButtonMap {
- public:
-  static XButtonMap* GetInstance() {
-    return Singleton<XButtonMap>::get();
-  }
-
-  void UpdateMapping() {
-    count_ = XGetPointerMapping(gfx::GetXDisplay(), map_, arraysize(map_));
-  }
-
-  int GetMappedButton(int button) {
-    return button > 0 && button <= count_ ? map_[button - 1] : button;
-  }
-
- private:
-  friend struct DefaultSingletonTraits<XButtonMap>;
-
-  XButtonMap() {
-    UpdateMapping();
-  }
-
-  ~XButtonMap() {}
-
-  unsigned char map_[256];
-  int count_;
-
-  DISALLOW_COPY_AND_ASSIGN(XButtonMap);
-};
-
 bool IsShapeAvailable() {
   int dummy;
   static bool is_shape_available =
@@ -1375,48 +1312,6 @@ bool IsX11WindowFullScreen(XID window) {
 #endif
 }
 
-bool IsMotionEvent(XEvent* event) {
-  int type = event->type;
-  if (type == GenericEvent)
-    type = event->xgeneric.evtype;
-  return type == MotionNotify;
-}
-
-int GetMappedButton(int button) {
-  return XButtonMap::GetInstance()->GetMappedButton(button);
-}
-
-void UpdateButtonMap() {
-  XButtonMap::GetInstance()->UpdateMapping();
-}
-
-void InitXKeyEventForTesting(EventType type,
-                             KeyboardCode key_code,
-                             int flags,
-                             XEvent* event) {
-  CHECK(event);
-  XDisplay* display = gfx::GetXDisplay();
-  XKeyEvent key_event;
-  key_event.type = XKeyEventType(type);
-  CHECK_NE(0, key_event.type);
-  key_event.serial = 0;
-  key_event.send_event = 0;
-  key_event.display = display;
-  key_event.time = 0;
-  key_event.window = 0;
-  key_event.root = 0;
-  key_event.subwindow = 0;
-  key_event.x = 0;
-  key_event.y = 0;
-  key_event.x_root = 0;
-  key_event.y_root = 0;
-  key_event.state = XKeyEventState(flags);
-  key_event.keycode = XKeyEventKeyCode(key_code, flags, display);
-  key_event.same_screen = 1;
-  event->type = key_event.type;
-  event->xkey = key_event;
-}
-
 const unsigned char* XRefcountedMemory::front() const {
   return x11_data_;
 }
diff --git a/ui/base/x/x11_util.h b/ui/base/x/x11_util.h
index 0193730..5f3e502 100644
--- a/ui/base/x/x11_util.h
+++ b/ui/base/x/x11_util.h
@@ -302,23 +302,6 @@ UI_EXPORT void SetDefaultX11ErrorHandlers();
 // Return true if a given window is in full-screen mode.
 UI_EXPORT bool IsX11WindowFullScreen(XID window);
 
-// Return true if event type is MotionNotify.
-UI_EXPORT bool IsMotionEvent(XEvent* event);
-
-// Returns the mapped button.
-int GetMappedButton(int button);
-
-// Updates button mapping. This is usually called when a MappingNotify event is
-// received.
-UI_EXPORT void UpdateButtonMap();
-
-// Initializes a XEvent that holds XKeyEvent for testing. Note that ui::EF_
-// flags should be passed as |flags|, not the native ones in <X11/X.h>.
-UI_EXPORT void InitXKeyEventForTesting(EventType type,
-                                       KeyboardCode key_code,
-                                       int flags,
-                                       XEvent* event);
-
 // Manages a piece of X11 allocated memory as a RefCountedMemory segment. This
 // object takes ownership over the passed in memory and will free it with the
 // X11 allocator when done.
diff --git a/ui/events/event_unittest.cc b/ui/events/event_unittest.cc
index 43fbf9a..249acb6 100644
--- a/ui/events/event_unittest.cc
+++ b/ui/events/event_unittest.cc
@@ -8,7 +8,8 @@
 
 #if defined(USE_X11)
 #include <X11/Xlib.h>
-#include "ui/base/x/x11_util.h"
+#include "ui/events/x/events_x_utils.h"
+#include "ui/gfx/x/x11_types.h"
 #endif
 
 namespace ui {
diff --git a/ui/base/win/events_win.cc b/ui/events/win/events_win.cc
index 04b9cd0..04b9cd0 100644
--- a/ui/base/win/events_win.cc
+++ b/ui/events/win/events_win.cc
diff --git a/ui/base/x/device_data_manager.cc b/ui/events/x/device_data_manager.cc
index 784819f..e6a4222 100644
--- a/ui/base/x/device_data_manager.cc
+++ b/ui/events/x/device_data_manager.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "ui/base/x/device_data_manager.h"
+#include "ui/events/x/device_data_manager.h"
 
 #include <X11/extensions/XInput.h>
 #include <X11/extensions/XInput2.h>
@@ -11,10 +11,10 @@
 #include "base/logging.h"
 #include "base/memory/singleton.h"
 #include "ui/base/touch/touch_factory_x11.h"
-#include "ui/base/x/device_list_cache_x.h"
-#include "ui/base/x/x11_util.h"
 #include "ui/events/event_constants.h"
 #include "ui/events/event_utils.h"
+#include "ui/events/x/device_list_cache_x.h"
+#include "ui/gfx/x/x11_types.h"
 
 // XIScrollClass was introduced in XI 2.1 so we need to define it here
 // for backward-compatibility with older versions of XInput.
@@ -116,12 +116,14 @@ DeviceDataManager* DeviceDataManager::GetInstance() {
 
 DeviceDataManager::DeviceDataManager()
     : natural_scroll_enabled_(false),
-      atom_cache_(gfx::GetXDisplay(), kCachedAtoms) {
+      atom_cache_(gfx::GetXDisplay(), kCachedAtoms),
+      button_map_count_(0) {
   InitializeXInputInternal();
 
   // Make sure the sizes of enum and kCachedAtoms are aligned.
   CHECK(arraysize(kCachedAtoms) == static_cast<size_t>(DT_LAST_ENTRY) + 1);
   UpdateDeviceList(gfx::GetXDisplay());
+  UpdateButtonMap();
 }
 
 DeviceDataManager::~DeviceDataManager() {
@@ -509,6 +511,17 @@ void DeviceDataManager::GetMetricsData(const base::NativeEvent& native_event,
     *data2 = data[DT_CMT_METRICS_DATA2];
 }
 
+int DeviceDataManager::GetMappedButton(int button) {
+  return button > 0 && button <= button_map_count_ ? button_map_[button - 1] :
+                                                     button;
+}
+
+void DeviceDataManager::UpdateButtonMap() {
+  button_map_count_ = XGetPointerMapping(gfx::GetXDisplay(),
+                                         button_map_,
+                                         arraysize(button_map_));
+}
+
 void DeviceDataManager::GetGestureTimes(const base::NativeEvent& native_event,
                                         double* start_time,
                                         double* end_time) {
diff --git a/ui/base/x/device_data_manager.h b/ui/events/x/device_data_manager.h
index f07012f..1d78b14 100644
--- a/ui/base/x/device_data_manager.h
+++ b/ui/events/x/device_data_manager.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef UI_BASE_X_DEVICE_DATA_MANAGER_H_
-#define UI_BASE_X_DEVICE_DATA_MANAGER_H_
+#ifndef UI_EVENTS_X_DEVICE_DATA_MANAGER_H_
+#define UI_EVENTS_X_DEVICE_DATA_MANAGER_H_
 
 #include <X11/extensions/XInput2.h>
 
@@ -13,9 +13,9 @@
 
 #include "base/basictypes.h"
 #include "base/event_types.h"
-#include "ui/base/ui_export.h"
-#include "ui/base/x/x11_atom_cache.h"
 #include "ui/events/event_constants.h"
+#include "ui/events/events_export.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 
 template <typename T> struct DefaultSingletonTraits;
 
@@ -31,7 +31,7 @@ enum GestureMetricsType {
 
 // A class that extracts and tracks the input events data. It currently handles
 // mouse, touchpad and touchscreen devices.
-class UI_EXPORT DeviceDataManager {
+class EVENTS_EXPORT DeviceDataManager {
  public:
   // Enumerate additional data that one might be interested on an input event,
   // which are usually wrapped in X valuators. If you modify any of this,
@@ -193,6 +193,13 @@ class UI_EXPORT DeviceDataManager {
                       float* data1,
                       float* data2);
 
+  // Returns the mapped button.
+  int GetMappedButton(int button);
+
+  // Updates button mapping. This is usually called when a MappingNotify event
+  // is received.
+  void UpdateButtonMap();
+
   // Extract the start/end timestamps from CMT events. User must first verify
   // the event with HasGestureTimes. Pointers shouldn't be NULL.
   void GetGestureTimes(const base::NativeEvent& native_event,
@@ -285,9 +292,12 @@ class UI_EXPORT DeviceDataManager {
   // X11 atoms cache.
   X11AtomCache atom_cache_;
 
+  unsigned char button_map_[256];
+  int button_map_count_;
+
   DISALLOW_COPY_AND_ASSIGN(DeviceDataManager);
 };
 
 }  // namespace ui
 
-#endif  // UI_BASE_X_DEVICE_DATA_MANAGER_H_
+#endif  // UI_EVENTS_X_DEVICE_DATA_MANAGER_H_
diff --git a/ui/base/x/device_list_cache_x.cc b/ui/events/x/device_list_cache_x.cc
index 9fcb9db..db0846d 100644
--- a/ui/base/x/device_list_cache_x.cc
+++ b/ui/events/x/device_list_cache_x.cc
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "ui/base/x/device_list_cache_x.h"
+#include "ui/events/x/device_list_cache_x.h"
 
 #include <algorithm>
 
 #include "base/memory/singleton.h"
-#include "ui/base/x/x11_util.h"
 
 namespace ui {
 
diff --git a/ui/base/x/device_list_cache_x.h b/ui/events/x/device_list_cache_x.h
index 2b3cefa..f68803a 100644
--- a/ui/base/x/device_list_cache_x.h
+++ b/ui/events/x/device_list_cache_x.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef UI_BASE_X_DEVICE_LIST_CACHE_X_H_
-#define UI_BASE_X_DEVICE_LIST_CACHE_X_H_
+#ifndef UI_EVENTS_X_DEVICE_LIST_CACHE_X_H_
+#define UI_EVENTS_X_DEVICE_LIST_CACHE_X_H_
 
 #include <X11/extensions/XInput.h>
 #include <X11/extensions/XInput2.h>
@@ -11,7 +11,7 @@
 #include <map>
 
 #include "base/basictypes.h"
-#include "ui/base/ui_export.h"
+#include "ui/events/events_export.h"
 
 template <typename T> struct DefaultSingletonTraits;
 
@@ -36,7 +36,7 @@ namespace ui {
 // A class to cache the current XInput device list. This minimized the
 // round-trip time to the X server whenever such a device list is needed. The
 // update function will be called on each incoming XI_HierarchyChanged event.
-class UI_EXPORT DeviceListCacheX {
+class EVENTS_EXPORT DeviceListCacheX {
  public:
   static DeviceListCacheX* GetInstance();
 
@@ -59,5 +59,5 @@ class UI_EXPORT DeviceListCacheX {
 
 }  // namespace ui
 
-#endif  // UI_BASE_X_DEVICE_LIST_CACHE_X_H_
+#endif  // UI_EVENTS_X_DEVICE_LIST_CACHE_X_H_
 
diff --git a/ui/base/x/events_x.cc b/ui/events/x/events_x.cc
index 06301a9..4317a7b 100644
--- a/ui/base/x/events_x.cc
+++ b/ui/events/x/events_x.cc
@@ -13,16 +13,16 @@
 #include "base/memory/singleton.h"
 #include "base/message_loop/message_pump_x11.h"
 #include "ui/base/touch/touch_factory_x11.h"
-#include "ui/base/x/device_data_manager.h"
-#include "ui/base/x/device_list_cache_x.h"
-#include "ui/base/x/x11_atom_cache.h"
-#include "ui/base/x/x11_util.h"
 #include "ui/events/event_utils.h"
 #include "ui/events/keycodes/keyboard_code_conversion_x.h"
+#include "ui/events/x/device_data_manager.h"
+#include "ui/events/x/device_list_cache_x.h"
 #include "ui/gfx/display.h"
 #include "ui/gfx/point.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/screen.h"
+#include "ui/gfx/x/x11_atom_cache.h"
+#include "ui/gfx/x/x11_types.h"
 
 namespace {
 
@@ -173,7 +173,7 @@ int GetButtonMaskForX2Event(XIDeviceEvent* xievent) {
   for (int i = 0; i < 8 * xievent->buttons.mask_len; i++) {
     if (XIMaskIsSet(xievent->buttons.mask, i)) {
       int button = (xievent->sourceid == xievent->deviceid) ?
-                   ui::GetMappedButton(i) : i;
+                   ui::DeviceDataManager::GetInstance()->GetMappedButton(i) : i;
       buttonflags |= GetEventFlagsForButton(button);
     }
   }
@@ -501,7 +501,7 @@ int EventButtonFromNative(const base::NativeEvent& native_event) {
   int button = xievent->detail;
 
   return (xievent->sourceid == xievent->deviceid) ?
-         ui::GetMappedButton(button) : button;
+         DeviceDataManager::GetInstance()->GetMappedButton(button) : button;
 }
 
 KeyboardCode KeyboardCodeFromNative(const base::NativeEvent& native_event) {
diff --git a/ui/base/x/events_x_unittest.cc b/ui/events/x/events_x_unittest.cc
index 3a85a0a..c3e2d22 100644
--- a/ui/base/x/events_x_unittest.cc
+++ b/ui/events/x/events_x_unittest.cc
@@ -13,10 +13,10 @@
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/touch/touch_factory_x11.h"
-#include "ui/base/x/device_data_manager.h"
 #include "ui/events/event.h"
 #include "ui/events/event_constants.h"
 #include "ui/events/event_utils.h"
+#include "ui/events/x/device_data_manager.h"
 #include "ui/gfx/point.h"
 
 namespace ui {
diff --git a/ui/events/x/events_x_utils.cc b/ui/events/x/events_x_utils.cc
new file mode 100644
index 0000000..6fe9e2d
--- /dev/null
+++ b/ui/events/x/events_x_utils.cc
@@ -0,0 +1,80 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ui/events/x/events_x_utils.h"
+
+#include <X11/keysym.h>
+#include <X11/X.h>
+#include <X11/Xlib.h>
+
+#include "base/logging.h"
+#include "ui/events/keycodes/keyboard_code_conversion_x.h"
+
+namespace {
+
+// Converts ui::EventType to XKeyEvent state.
+unsigned int XKeyEventState(int flags) {
+  return
+      ((flags & ui::EF_SHIFT_DOWN) ? ShiftMask : 0) |
+      ((flags & ui::EF_CONTROL_DOWN) ? ControlMask : 0) |
+      ((flags & ui::EF_ALT_DOWN) ? Mod1Mask : 0) |
+      ((flags & ui::EF_CAPS_LOCK_DOWN) ? LockMask : 0);
+}
+
+// Converts EventType to XKeyEvent type.
+int XKeyEventType(ui::EventType type) {
+  switch (type) {
+    case ui::ET_KEY_PRESSED:
+      return KeyPress;
+    case ui::ET_KEY_RELEASED:
+      return KeyRelease;
+    default:
+      return 0;
+  }
+}
+
+// Converts KeyboardCode to XKeyEvent keycode.
+unsigned int XKeyEventKeyCode(ui::KeyboardCode key_code,
+                              int flags,
+                              XDisplay* display) {
+  const int keysym = XKeysymForWindowsKeyCode(key_code,
+                                              flags & ui::EF_SHIFT_DOWN);
+  // Tests assume the keycode for XK_less is equal to the one of XK_comma,
+  // but XKeysymToKeycode returns 94 for XK_less while it returns 59 for
+  // XK_comma. Here we convert the value for XK_less to the value for XK_comma.
+  return (keysym == XK_less) ? 59 : XKeysymToKeycode(display, keysym);
+}
+
+}  // namespace ui
+
+namespace ui {
+
+void InitXKeyEventForTesting(EventType type,
+                             KeyboardCode key_code,
+                             int flags,
+                             XEvent* event) {
+  CHECK(event);
+  XDisplay* display = gfx::GetXDisplay();
+  XKeyEvent key_event;
+  key_event.type = XKeyEventType(type);
+  CHECK_NE(0, key_event.type);
+  key_event.serial = 0;
+  key_event.send_event = 0;
+  key_event.display = display;
+  key_event.time = 0;
+  key_event.window = 0;
+  key_event.root = 0;
+  key_event.subwindow = 0;
+  key_event.x = 0;
+  key_event.y = 0;
+  key_event.x_root = 0;
+  key_event.y_root = 0;
+  key_event.state = XKeyEventState(flags);
+  key_event.keycode = XKeyEventKeyCode(key_code, flags, display);
+  key_event.same_screen = 1;
+  event->type = key_event.type;
+  event->xkey = key_event;
+}
+
+}  // namespace ui
diff --git a/ui/events/x/events_x_utils.h b/ui/events/x/events_x_utils.h
new file mode 100644
index 0000000..2e1a441
--- /dev/null
+++ b/ui/events/x/events_x_utils.h
@@ -0,0 +1,21 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ui/events/event_constants.h"
+#include "ui/events/events_export.h"
+#include "ui/events/keycodes/keyboard_codes.h"
+#include "ui/gfx/x/x11_types.h"
+
+typedef union _XEvent XEvent;
+
+namespace ui {
+
+// Initializes a XEvent that holds XKeyEvent for testing. Note that ui::EF_
+// flags should be passed as |flags|, not the native ones in <X11/X.h>.
+EVENTS_EXPORT void InitXKeyEventForTesting(EventType type,
+                                           KeyboardCode key_code,
+                                           int flags,
+                                           XEvent* event);
+
+}  // namespace ui
diff --git a/ui/base/x/x11_atom_cache.cc b/ui/gfx/x/x11_atom_cache.cc
index 09e59f1..da75c0be 100644
--- a/ui/base/x/x11_atom_cache.cc
+++ b/ui/gfx/x/x11_atom_cache.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "ui/base/x/x11_atom_cache.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 
 #include <X11/Xatom.h>
 
diff --git a/ui/base/x/x11_atom_cache.h b/ui/gfx/x/x11_atom_cache.h
index b15744b..fefa642 100644
--- a/ui/base/x/x11_atom_cache.h
+++ b/ui/gfx/x/x11_atom_cache.h
@@ -2,17 +2,17 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef UI_BASE_X_X11_ATOM_CACHE_H_
-#define UI_BASE_X_X11_ATOM_CACHE_H_
+#ifndef UI_GFX_X_X11_ATOM_CACHE_H_
+#define UI_GFX_X_X11_ATOM_CACHE_H_
 
 #include "base/basictypes.h"
-#include "ui/base/ui_export.h"
-
-#include <X11/Xlib.h>
+#include "ui/gfx/gfx_export.h"
 
 #include <map>
 #include <string>
 
+#include <X11/Xlib.h>
+
 // Get rid of a macro from Xlib.h that conflicts with Aura's RootWindow class.
 #undef RootWindow
 
@@ -22,7 +22,7 @@ namespace ui {
 // server. By default, GetAtom() will CHECK() that atoms accessed through
 // GetAtom() were passed to the constructor, but this behaviour can be changed
 // with allow_uncached_atoms().
-class UI_EXPORT X11AtomCache {
+class GFX_EXPORT X11AtomCache {
  public:
   // Preinterns the NULL terminated list of string |to_cache_ on |xdisplay|.
   X11AtomCache(Display* xdisplay, const char** to_cache);
@@ -47,4 +47,4 @@ class UI_EXPORT X11AtomCache {
 
 }  // namespace ui
 
-#endif  // UI_BASE_X_X11_ATOM_CACHE_H_
+#endif  // UI_GFX_X_X11_ATOM_CACHE_H_
diff --git a/ui/ui.gyp b/ui/ui.gyp
index 316617a..137b5f0 100644
--- a/ui/ui.gyp
+++ b/ui/ui.gyp
@@ -297,7 +297,7 @@
         'base/win/accessibility_misc_utils.cc',
         'base/win/accessibility_misc_utils.h',
         'base/win/atl_module.h',
-        'base/win/events_win.cc',
+        'events/win/events_win.cc',
         'base/win/extra_sdk_defines.h',
         'base/win/foreground_helper.cc',
         'base/win/foreground_helper.h',
@@ -321,11 +321,13 @@
         'base/x/active_window_watcher_x.cc',
         'base/x/active_window_watcher_x.h',
         'base/x/active_window_watcher_x_observer.h',
-        'base/x/device_data_manager.cc',
-        'base/x/device_data_manager.h',
-        'base/x/device_list_cache_x.cc',
-        'base/x/device_list_cache_x.h',
-        'base/x/events_x.cc',
+        'events/x/device_data_manager.cc',
+        'events/x/device_data_manager.h',
+        'events/x/device_list_cache_x.cc',
+        'events/x/device_list_cache_x.h',
+        'events/x/events_x.cc',
+        'events/x/events_x_utils.cc',
+        'events/x/events_x_utils.h',
         'base/x/root_window_property_watcher_x.cc',
         'base/x/root_window_property_watcher_x.h',
         'base/x/selection_owner.cc',
@@ -336,8 +338,6 @@
         'base/x/selection_utils.h',
         'base/x/work_area_watcher_x.cc',
         'base/x/work_area_watcher_x.h',
-        'base/x/x11_atom_cache.cc',
-        'base/x/x11_atom_cache.h',
         'base/x/x11_error_tracker.cc',
         'base/x/x11_error_tracker.h',
         'base/x/x11_error_tracker_gtk.cc',
@@ -609,6 +609,8 @@
         'gfx/win/singleton_hwnd.h',
         'gfx/win/window_impl.cc',
         'gfx/win/window_impl.h',
+        'gfx/x/x11_atom_cache.cc',
+        'gfx/x/x11_atom_cache.h',
         'gfx/x/x11_types.cc',
         'gfx/x/x11_types.h',
         'webui/jstemplate_builder.cc',
@@ -879,6 +881,7 @@
           'sources/': [
             ['exclude', 'events/keycodes/keyboard_code_conversion_x.*'],
             ['exclude', 'base/x/*'],
+            ['exclude', 'events/x/*'],
           ],
         }],
         ['use_ozone==0', {
@@ -890,7 +893,6 @@
         }],
         ['toolkit_views==0', {
           'sources!': [
-            'base/x/events_x.cc',
             'base/dragdrop/drop_target_event.cc',
             'base/dragdrop/drop_target_event.h',
             'events/event.cc',
@@ -901,6 +903,7 @@
             'events/event_handler.h',
             'events/event_target.cc',
             'events/event_target.h',
+            'events/x/events_x.cc',
           ],
         }],
         ['OS=="android"', {
diff --git a/ui/ui_unittests.gypi b/ui/ui_unittests.gypi
index 18265d4..3cd7477 100644
--- a/ui/ui_unittests.gypi
+++ b/ui/ui_unittests.gypi
@@ -240,7 +240,7 @@
         }],
         ['OS == "linux" and toolkit_views==1', {
           'sources': [
-            'base/x/events_x_unittest.cc',
+            'events/x/events_x_unittest.cc',
           ],
         }],
         ['OS != "mac" and OS != "ios"', {
diff --git a/ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.h b/ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.h
index 0ebbb95..5913972 100644
--- a/ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.h
+++ b/ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.h
@@ -18,8 +18,8 @@
 #include "ui/aura/client/drag_drop_client.h"
 #include "ui/aura/window_observer.h"
 #include "ui/base/cursor/cursor.h"
-#include "ui/base/x/x11_atom_cache.h"
 #include "ui/gfx/point.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 #include "ui/views/views_export.h"
 #include "ui/views/widget/desktop_aura/x11_whole_screen_move_loop.h"
 #include "ui/views/widget/desktop_aura/x11_whole_screen_move_loop_delegate.h"
diff --git a/ui/views/widget/desktop_aura/desktop_root_window_host_x11.cc b/ui/views/widget/desktop_aura/desktop_root_window_host_x11.cc
index 1610558..eaf36e4 100644
--- a/ui/views/widget/desktop_aura/desktop_root_window_host_x11.cc
+++ b/ui/views/widget/desktop_aura/desktop_root_window_host_x11.cc
@@ -23,6 +23,7 @@
 #include "ui/base/touch/touch_factory_x11.h"
 #include "ui/base/x/x11_util.h"
 #include "ui/events/event_utils.h"
+#include "ui/events/x/device_data_manager.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/path_x11.h"
 #include "ui/native_theme/native_theme.h"
@@ -1264,7 +1265,7 @@ bool DesktopRootWindowHostX11::Dispatch(const base::NativeEvent& event) {
           root_window_->OnKeyboardMappingChanged();
           break;
         case MappingPointer:
-          ui::UpdateButtonMap();
+          ui::DeviceDataManager::GetInstance()->UpdateButtonMap();
           break;
         default:
           NOTIMPLEMENTED() << " Unknown request: " << xev->xmapping.request;
diff --git a/ui/views/widget/desktop_aura/desktop_root_window_host_x11.h b/ui/views/widget/desktop_aura/desktop_root_window_host_x11.h
index ded7e98..1c5e196 100644
--- a/ui/views/widget/desktop_aura/desktop_root_window_host_x11.h
+++ b/ui/views/widget/desktop_aura/desktop_root_window_host_x11.h
@@ -16,8 +16,8 @@
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/root_window_host.h"
 #include "ui/base/cursor/cursor_loader_x11.h"
-#include "ui/base/x/x11_atom_cache.h"
 #include "ui/gfx/rect.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 #include "ui/views/views_export.h"
 #include "ui/views/widget/desktop_aura/desktop_root_window_host.h"
 
diff --git a/ui/views/widget/desktop_aura/x11_desktop_handler.h b/ui/views/widget/desktop_aura/x11_desktop_handler.h
index e84b6d4..577827e 100644
--- a/ui/views/widget/desktop_aura/x11_desktop_handler.h
+++ b/ui/views/widget/desktop_aura/x11_desktop_handler.h
@@ -11,7 +11,7 @@
 
 #include "base/message_loop/message_loop.h"
 #include "ui/aura/env_observer.h"
-#include "ui/base/x/x11_atom_cache.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 #include "ui/gfx/x/x11_types.h"
 #include "ui/views/views_export.h"
 
diff --git a/ui/views/widget/desktop_aura/x11_window_event_filter.h b/ui/views/widget/desktop_aura/x11_window_event_filter.h
index 9fab5a6..ee4d37b 100644
--- a/ui/views/widget/desktop_aura/x11_window_event_filter.h
+++ b/ui/views/widget/desktop_aura/x11_window_event_filter.h
@@ -11,8 +11,8 @@
 
 #include "base/compiler_specific.h"
 #include "base/message_loop/message_loop.h"
-#include "ui/base/x/x11_atom_cache.h"
 #include "ui/events/event_handler.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 #include "ui/gfx/x/x11_types.h"
 #include "ui/views/views_export.h"