[chromedriver] Implement connecting to devtools and loading a page.

chrome/test/chromedriver/net/net_util.cc

+// Copyright (c) 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.
+
+#include "base/memory/scoped_ptr.h"
+#include "base/message_loop.h"
+#include "chrome/test/chromedriver/net/url_request_context_getter.h"
+#include "googleurl/src/gurl.h"
+#include "net/url_request/url_fetcher.h"
+#include "net/url_request/url_fetcher_delegate.h"
+
+namespace {
+
+class SyncUrlFetcher : public net::URLFetcherDelegate {
+ public:
+  SyncUrlFetcher() {}
+  virtual ~SyncUrlFetcher() {}
+
+  bool Fetch(const GURL& url,
+             URLRequestContextGetter* getter,
+             std::string* response) {
+    MessageLoop loop;
+    scoped_ptr<net::URLFetcher> fetcher_(
+        net::URLFetcher::Create(url, net::URLFetcher::GET, this));
+    fetcher_->SetRequestContext(getter);
+    response_ = response;
+    fetcher_->Start();
+    loop.Run();
+    return success_;
+  }
+
+  virtual void OnURLFetchComplete(const net::URLFetcher* source) {
+    success_ = (source->GetResponseCode() == 200);
+    if (success_)
+      success_ = source->GetResponseAsString(response_);
+    MessageLoop::current()->Quit();
+  }
+
+ private:
+  bool success_;
+  std::string* response_;
+};
+
+}  // namespace
+
+bool FetchUrl(const GURL& url,
+              URLRequestContextGetter* getter,
+              std::string* response) {
+  return SyncUrlFetcher().Fetch(url, getter, response);
+}