Add MineDigger.apk that works offline

sky/shell/ui/engine.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/shell/ui/engine.h"
 
 #include "base/bind.h"
+#include "base/files/file_path.h"
+#include "base/threading/worker_pool.h"
 #include "base/trace_event/trace_event.h"
+#include "mojo/common/data_pipe_utils.h"
 #include "mojo/public/cpp/application/connect.h"
 #include "sky/engine/public/platform/WebInputEvent.h"
 #include "sky/engine/public/platform/sky_display_metrics.h"
 #include "sky/engine/public/platform/sky_display_metrics.h"
 #include "sky/engine/public/web/Sky.h"
 #include "sky/engine/public/web/WebLocalFrame.h"
 #include "sky/engine/public/web/WebSettings.h"
 #include "sky/engine/public/web/WebView.h"
 #include "sky/services/platform/platform_impl.h"
 #include "sky/shell/dart/dart_library_provider_files.h"
 #include "sky/shell/dart/dart_library_provider_network.h"
 #include "sky/shell/service_provider.h"
 #include "sky/shell/ui/animator.h"
 #include "sky/shell/ui/input_event_converter.h"
 #include "sky/shell/ui/internals.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkPictureRecorder.h"
 
 namespace sky {
 namespace shell {
 
 namespace {
 
+void Ignored(bool) {
+}
+
+mojo::ScopedDataPipeConsumerHandle Fetch(const base::FilePath& path) {
+  mojo::DataPipe pipe;
+  auto runner = base::WorkerPool::GetTaskRunner(true);
+  mojo::common::CopyFromFile(base::FilePath(path), pipe.producer_handle.Pass(),
+                             0, runner.get(), base::Bind(&Ignored));
+  return pipe.consumer_handle.Pass();
+}
+
 void ConfigureSettings(blink::WebSettings* settings) {
   settings->setDefaultFixedFontSize(13);
   settings->setDefaultFontSize(16);
   settings->setLoadsImagesAutomatically(true);
 }
 
 PlatformImpl* g_platform_impl = nullptr;
 
 }
 
@@ skipping 169 matching lines @@
   RunFromLibrary(url);
 }
 
 void Engine::RunFromFile(const mojo::String& main,
                          const mojo::String& package_root) {
   dart_library_provider_.reset(
       new DartLibraryProviderFiles(base::FilePath(package_root)));
   RunFromLibrary(main);
 }
 
-void Engine::RunFromSnapshot(const mojo::String& url,
-                             mojo::ScopedDataPipeConsumerHandle snapshot) {
+void Engine::RunFromSnapshot(const mojo::String& path) {
   CloseWebViewIfNeeded();
   sky_view_ = blink::SkyView::Create(this);
-  sky_view_->RunFromSnapshot(blink::WebString::fromUTF8(url), snapshot.Pass());
+  sky_view_->RunFromSnapshot(blink::WebString::fromUTF8(path),
+                             Fetch(base::FilePath(path)));
   UpdateSkyViewSize();
 }
 
 void Engine::LoadUsingWebView(const mojo::String& mojo_url) {
   GURL url(mojo_url);
   DCHECK(blink::WebView::shouldUseWebView(url));
 
   if (sky_view_)
     sky_view_ = nullptr;
 
@@ skipping 54 matching lines @@
 
 void Engine::DidNavigateLocally(const mojo::String& url) {
 }
 
 void Engine::RequestNavigateHistory(int32_t delta) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace shell
 }  // namespace sky