Remove dead code from DartController

sky/engine/core/script/dart_library_provider_webview.cc

-// Copyright 2015 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 "sky/engine/core/script/dart_library_provider_webview.h"
-
-#include "sky/engine/platform/fetcher/MojoFetcher.h"
-#include "sky/engine/platform/weborigin/KURL.h"
-#include "sky/engine/tonic/dart_converter.h"
-
-namespace blink {
-
-class DartLibraryProviderWebView::Job : public MojoFetcher::Client {
- public:
-  Job(DartLibraryProviderWebView* provider,
-      const String& name,
-      DataPipeConsumerCallback callback)
-      : provider_(provider), callback_(callback) {
-    fetcher_ = adoptPtr(new MojoFetcher(this, KURL(ParsedURLString, name)));
-  }
-
-  ~Job() override {}
-
- private:
-  void OnReceivedResponse(mojo::URLResponsePtr response) {
-    if (response->status_code != 200) {
-      callback_.Run(mojo::ScopedDataPipeConsumerHandle());
-    } else {
-      callback_.Run(response->body.Pass());
-    }
-    provider_->jobs_.remove(this);
-    // We're deleted now.
-  }
-
-  DartLibraryProviderWebView* provider_;
-  DataPipeConsumerCallback callback_;
-  OwnPtr<MojoFetcher> fetcher_;
-};
-
-DartLibraryProviderWebView::DartLibraryProviderWebView() {
-}
-
-DartLibraryProviderWebView::~DartLibraryProviderWebView() {
-}
-
-void DartLibraryProviderWebView::GetLibraryAsStream(
-    const String& name,
-    DataPipeConsumerCallback callback) {
-  jobs_.add(adoptPtr(new Job(this, name, callback)));
-}
-
-Dart_Handle DartLibraryProviderWebView::CanonicalizeURL(Dart_Handle library,
-                                                        Dart_Handle url) {
-  String string = StringFromDart(url);
-  if (string.startsWith("dart:"))
-    return url;
-  // TODO(abarth): The package root should be configurable.
-  if (string.startsWith("package:"))
-    string.replace("package:", "/packages/");
-  String library_url_string = StringFromDart(Dart_LibraryUrl(library));
-  KURL library_url = KURL(ParsedURLString, library_url_string);
-  KURL resolved_url = KURL(library_url, string);
-  return StringToDart(DartState::Current(), resolved_url.string());
-}
-
-}  // namespace blink