Move a bunch of windows stuff from ui/base/win to ui/gfx/win

ui/base/ime/input_method_win.cc

Index: ui/base/ime/input_method_win.cc
diff --git a/ui/base/ime/input_method_win.cc b/ui/base/ime/input_method_win.cc
index 90f87da7b5d25fadd21ab11b1f7ff620c886fda5..3982c22d01d7313458ffd0108ed9ac6d4b8e37e3 100644
--- a/ui/base/ime/input_method_win.cc
+++ b/ui/base/ime/input_method_win.cc
@@ -10,7 +10,7 @@
 #include "ui/base/events/event_utils.h"
 #include "ui/base/ime/text_input_client.h"
 #include "ui/base/keycodes/keyboard_codes.h"
-#include "ui/base/win/hwnd_util.h"
+#include "ui/gfx/win/hwnd_util.h"
 
 namespace ui {
 namespace {
@@ -158,7 +158,7 @@ LRESULT InputMethodWin::OnChar(HWND window_handle,
   // Note: Setting |handled| to FALSE for DefWindowProc triggering of the system
   //       menu causes undesirable titlebar artifacts in the classic theme.
   if (message == WM_SYSCHAR && wparam == VK_SPACE)
-    ui::ShowSystemMenu(window_handle);
+    gfx::ShowSystemMenu(window_handle);
 
   return 0;
 }