Move LowerCaseEqualsASCII to base namespace

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 1c4f80986a415dd37d513d931e8b88a2641d3019..9ab74b3687d6474e0c1718bea592f646f56212cb 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -2219,8 +2219,8 @@ bool RenderViewImpl::IsEditableNode(const WebNode& node) const {
 
     // Also return true if it has an ARIA role of 'textbox'.
     for (unsigned i = 0; i < element.attributeCount(); ++i) {
-      if (LowerCaseEqualsASCII(element.attributeLocalName(i), "role")) {
-        if (LowerCaseEqualsASCII(element.attributeValue(i), "textbox"))
+      if (base::LowerCaseEqualsASCII(element.attributeLocalName(i), "role")) {
+        if (base::LowerCaseEqualsASCII(element.attributeValue(i), "textbox"))
           return true;
         break;
       }