Update from https://crrev.com/333737

sky/services/platform/url_request_types.cc

Index: sky/services/platform/url_request_types.cc
diff --git a/sky/services/platform/url_request_types.cc b/sky/services/platform/url_request_types.cc
index 367577b2c3ca6276330e04e1ceb451d3f6c8a8d0..8191d866d8316beca19b766681169e361a419fd9 100644
--- a/sky/services/platform/url_request_types.cc
+++ b/sky/services/platform/url_request_types.cc
@@ -25,10 +25,10 @@ class HeaderFlattener : public blink::WebHTTPHeaderVisitor {
 
     // Skip over referrer headers found in the header map because we already
     // pulled it out as a separate parameter.
-    if (LowerCaseEqualsASCII(name_latin1, "referer"))
+    if (base::LowerCaseEqualsASCII(name_latin1, "referer"))
       return;
 
-    if (LowerCaseEqualsASCII(name_latin1, "accept"))
+    if (base::LowerCaseEqualsASCII(name_latin1, "accept"))
       has_accept_header_ = true;
 
     auto header = HttpHeader::New();