Turn test runner library into an actual component

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 <cctype>
 
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
@@ skipping 361 matching lines @@
   std::string result;
   const std::vector<WebTestProxyBase*>& window_list =
       interfaces->GetWindowList();
   for (size_t i = 0; i < window_list.size(); ++i)
     result.append(delegate->DumpHistoryForWindow(window_list.at(i)));
   return result;
 }
 }
 
 WebTestProxyBase::WebTestProxyBase()
-    : test_interfaces_(NULL),
+    : web_test_interfaces_(NULL),
+      test_interfaces_(NULL),
       delegate_(NULL),
       web_widget_(NULL),
       spellcheck_(new SpellCheckClient(this)),
       chooser_count_(0) {
   Reset();
 }
 
 WebTestProxyBase::~WebTestProxyBase() {
   test_interfaces_->WindowClosed(this);
 }
 
 void WebTestProxyBase::SetInterfaces(WebTestInterfaces* interfaces) {
+  web_test_interfaces_ = interfaces;
   test_interfaces_ = interfaces->GetTestInterfaces();
   test_interfaces_->WindowOpened(this);
 }
 
+WebTestInterfaces* WebTestProxyBase::GetInterfaces() {
+  return web_test_interfaces_;
+}
+
 void WebTestProxyBase::SetDelegate(WebTestDelegate* delegate) {
   delegate_ = delegate;
   spellcheck_->SetDelegate(delegate);
   if (speech_recognizer_.get())
     speech_recognizer_->SetDelegate(delegate);
 }
 
+WebTestDelegate* WebTestProxyBase::GetDelegate() {
+  return delegate_;
+}
+
 blink::WebView* WebTestProxyBase::GetWebView() const {
   DCHECK(web_widget_);
   // TestRunner does not support popup widgets. So |web_widget|_ is always a
   // WebView.
   return static_cast<blink::WebView*>(web_widget_);
 }
 
 void WebTestProxyBase::Reset() {
   drag_image_.reset();
   animate_scheduled_ = false;
@@ skipping 971 matching lines @@
   // to cancel the input method's ongoing composition session.
   if (web_widget_)
     web_widget_->confirmComposition();
 }
 
 blink::WebString WebTestProxyBase::acceptLanguages() {
   return blink::WebString::fromUTF8(accept_languages_);
 }
 
 }  // namespace test_runner