fileSystem() for the blink::Platform used in blink unit tests.

content/test/test_webkit_platform_support.cc

 // Copyright 2013 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 "content/test/test_webkit_platform_support.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/metrics/stats_counters.h"
 #include "base/path_service.h"
 #include "base/strings/utf_string_conversions.h"
+#include "content/child/fileapi/webfilesystem_impl.h"
 #include "content/public/common/content_switches.h"
 #include "content/test/mock_webclipboard_impl.h"
 #include "content/test/web_gesture_curve_mock.h"
 #include "content/test/web_layer_tree_view_impl_for_testing.h"
 #include "content/test/weburl_loader_mock_factory.h"
 #include "media/base/media.h"
 #include "net/cookies/cookie_monster.h"
 #include "net/test/spawned_test_server/spawned_test_server.h"
 #include "third_party/WebKit/public/platform/WebData.h"
 #include "third_party/WebKit/public/platform/WebFileSystem.h"
@@ skipping 96 matching lines @@
 blink::WebClipboard* TestWebKitPlatformSupport::clipboard() {
   // Mock out clipboard calls so that tests don't mess
   // with each other's copies/pastes when running in parallel.
   return mock_clipboard_.get();
 }
 
 blink::WebFileUtilities* TestWebKitPlatformSupport::fileUtilities() {
   return &file_utilities_;
 }
 
+blink::WebFileSystem* TestWebKitPlatformSupport::fileSystem() {
+  return WebFileSystemImpl::ThreadSpecificInstance(
+      base::MessageLoopProxy::current());
+}
+
 blink::WebIDBFactory* TestWebKitPlatformSupport::idbFactory() {
   NOTREACHED() <<
       "IndexedDB cannot be tested with in-process harnesses.";
   return NULL;
 }
 
 blink::WebMimeRegistry* TestWebKitPlatformSupport::mimeRegistry() {
   return &mime_registry_;
 }
 
@@ skipping 154 matching lines @@
     const blink::WebString& path) {
   base::FilePath file_path = base::FilePath::FromUTF16Unsafe(path);
 
   std::string buffer;
   base::ReadFileToString(file_path, &buffer);
 
   return blink::WebData(buffer.data(), buffer.size());
 }
 
 }  // namespace content