Use correct WebTestDelegate from WebViewTestClient and WebTestProxyBase.

components/test_runner/web_test_proxy.cc

 // Copyright 2014 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.
 
 #include "components/test_runner/web_test_proxy.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <cctype>
@@ skipping 74 matching lines @@
 
 WebTestProxyBase::~WebTestProxyBase() {
   test_interfaces_->WindowClosed(this);
 }
 
 void WebTestProxyBase::SetInterfaces(WebTestInterfaces* interfaces) {
   test_interfaces_ = interfaces->GetTestInterfaces();
   test_interfaces_->WindowOpened(this);
 }
 
-void WebTestProxyBase::SetDelegate(WebTestDelegate* delegate) {
-  delegate_ = delegate;
-}
-
 std::string WebTestProxyBase::DumpBackForwardLists() {
   return DumpAllBackForwardLists(test_interfaces_, delegate_);
 }
 
 void LayoutAndPaintCallback::didLayoutAndPaint() {
   TRACE_EVENT0("shell", "LayoutAndPaintCallback::didLayoutAndPaint");
   if (wait_for_popup_) {
     wait_for_popup_ = false;
     return;
   }
@@ skipping 20 matching lines @@
   MockScreenOrientationClient* mock_client =
       test_interfaces_->GetTestRunner()->getMockScreenOrientationClient();
   if (mock_client->IsDisabled())
     return;
   // Override screen orientation information with mock data.
   screen_info.orientationType = mock_client->CurrentOrientationType();
   screen_info.orientationAngle = mock_client->CurrentOrientationAngle();
 }
 
 }  // namespace test_runner