Convert remaining StringToLowerASCII to ToLowerASCII

content/browser/accessibility/browser_accessibility_win.cc

Index: content/browser/accessibility/browser_accessibility_win.cc
diff --git a/content/browser/accessibility/browser_accessibility_win.cc b/content/browser/accessibility/browser_accessibility_win.cc
index 57e5e56cff8945a3fd465758bd9eea38ca42cf5d..b4d0aa51a9e1bc24c0e7a14a7a8ac82377c2a99c 100644
--- a/content/browser/accessibility/browser_accessibility_win.cc
+++ b/content/browser/accessibility/browser_accessibility_win.cc
@@ -2758,8 +2758,8 @@ STDMETHODIMP BrowserAccessibilityWin::get_computedStyleForProperties(
   // We only cache a single style property for now: DISPLAY
 
   for (unsigned short i = 0; i < num_style_properties; ++i) {
-    base::string16 name = (LPCWSTR)style_properties[i];
-    base::StringToLowerASCII(&name);
+    base::string16 name = base::ToLowerASCII(
+        reinterpret_cast<const base::char16*>(style_properties[i]));
     if (name == L"display") {
       base::string16 display = GetString16Attribute(
           ui::AX_ATTR_DISPLAY);