New InputMethod api for Views.

views/widget/widget_win.cc

Index: views/widget/widget_win.cc
diff --git a/views/widget/widget_win.cc b/views/widget/widget_win.cc
index bd8a049ac938a060ad9541ca7748afabe0b00f85..6badb94790e8444fe8b3720faf663264d6bdf869 100644
--- a/views/widget/widget_win.cc
+++ b/views/widget/widget_win.cc
@@ -1208,6 +1208,28 @@ void Widget::NotifyLocaleChanged() {
   NOTIMPLEMENTED();
 }
 
+bool Widget::ConvertRect(const Widget* from,
+                         const Widget* to,
+                         gfx::Rect* rect) {
+  DCHECK(from);
+  DCHECK(to);
+  DCHECK(rect);
+
+  HWND from_hwnd = from->GetNativeView();
+  HWND to_hwnd = to->GetNativeView();
+  if (from_hwnd == to_hwnd)
+    return true;
+
+  RECT win_rect = rect->ToRECT();
+  if (::MapWindowPoints(from_hwnd, to_hwnd,
+                        reinterpret_cast<LPPOINT>(&win_rect),
+                        sizeof(RECT)/sizeof(POINT))) {
+    *rect = win_rect;
+    return true;
+  }
+  return false;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // NativeWidget, public: