Remove obsolete methods from CRWRequestTrackerDelegate protocol.

ios/web/net/request_tracker_impl_unittest.mm

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "ios/web/net/request_tracker_impl.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <vector>
@@ skipping 44 matching lines @@
 
 - (id)init {
   self = [super init];
   if (self) {
     value_ = 0.0f;
     max_ = 0.0f;
   }
   return self;
 }
 
-- (BOOL)isForStaticFileRequests {
-  return NO;
-}
-
 - (void)updatedProgress:(float)progress {
   if (progress > 0.0f) {
     if (progress < value_) {
       error_.reset(
           [[NSString stringWithFormat:
               @"going down from %f to %f", value_, progress] retain]);
     }
     value_ = progress;
   } else {
     value_ = 0.0f;
@@ skipping 15 matching lines @@
 - (net::HttpResponseHeaders*)headers {
   return headers_.get();
 }
 
 - (void)updatedSSLStatus:(const web::SSLStatus&)sslStatus
               forPageUrl:(const GURL&)url
                 userInfo:(id)userInfo {
   // Nothing. yet.
 }
 
-- (void)presentSSLError:(const net::SSLInfo&)info
-           forSSLStatus:(const web::SSLStatus&)status
-                  onUrl:(const GURL&)url
-            recoverable:(BOOL)recoverable
-               callback:(SSLErrorCallback)shouldContinue {
-  // Nothing, yet.
-}
-
 - (void)certificateUsed:(net::X509Certificate*)certificate
                 forHost:(const std::string&)host
                  status:(net::CertStatus)status {
   // Nothing, yet.
 }
 
 - (void)clearCertificates {
   // Nothing, yet.
 }
 
@@ skipping 382 matching lines @@
                                   base::Bind(&TwoStartsSSLCallback,
                                              &request_0_called));
   tracker_->OnSSLCertificateError(GetSecureRequest(1), ssl_info, true,
                                   base::Bind(&TwoStartsSSLCallback,
                                              &request_1_called));
   EXPECT_TRUE(request_0_called);
   EXPECT_TRUE(request_1_called);
 }
 
 }  // namespace