views: Rename child_widget() to GetChildWidget().

views/accessibility/native_view_accessibility_win.cc

Index: views/accessibility/native_view_accessibility_win.cc
diff --git a/views/accessibility/native_view_accessibility_win.cc b/views/accessibility/native_view_accessibility_win.cc
index 029a0dc700e244cf025f919eacdccffcbe0e25b0..6796afefd2ad2c4609ad7c99059a45b1ef04db75 100644
--- a/views/accessibility/native_view_accessibility_win.cc
+++ b/views/accessibility/native_view_accessibility_win.cc
@@ -42,9 +42,9 @@ IAccessible* NativeViewAccessibilityWin::GetAccessibleForView(
   }
 
   // Next, see if the view is a widget container.
-  if (view->child_widget()) {
+  if (view->GetChildWidget()) {
     views::NativeWidgetWin* native_widget =
-      reinterpret_cast<views::NativeWidgetWin*>(view->child_widget());
+      reinterpret_cast<views::NativeWidgetWin*>(view->GetChildWidget());
     if (GetNativeIAccessibleInterface(
         native_widget->GetNativeView(), &accessible) == S_OK) {
       return accessible;