Use explicit WebString conversions in chrome/renderer/safe_browsing

chrome/renderer/safe_browsing/phishing_classifier.cc

Index: chrome/renderer/safe_browsing/phishing_classifier.cc
diff --git a/chrome/renderer/safe_browsing/phishing_classifier.cc b/chrome/renderer/safe_browsing/phishing_classifier.cc
index d5babf6c1067ad2673f03516561d4749135a30fd..a2246d52d41d8fe1287994d4d362edaa99975553 100644
--- a/chrome/renderer/safe_browsing/phishing_classifier.cc
+++ b/chrome/renderer/safe_browsing/phishing_classifier.cc
@@ -135,9 +135,7 @@ void PhishingClassifier::BeginFeatureExtraction() {
   }
 
   blink::WebDataSource* ds = frame->dataSource();
-  if (!ds ||
-      !base::EqualsASCII(base::StringPiece16(ds->getRequest().httpMethod()),
-                         "GET")) {
+  if (!ds || ds->getRequest().httpMethod().ascii() != "GET") {
     if (ds)
       RecordReasonForSkippingClassificationToUMA(SKIP_NONE_GET);
     RunFailureCallback();