Add FileUtilities::GetFileInfo() to capture file metadata with single IPC

content/worker/worker_webkitplatformsupport_impl.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 "content/worker/worker_webkitplatformsupport_impl.h"
 
 #include "base/logging.h"
+#include "base/platform_file.h"
 #include "base/utf_string_conversions.h"
 #include "content/common/database_util.h"
 #include "content/common/fileapi/webblobregistry_impl.h"
 #include "content/common/fileapi/webfilesystem_impl.h"
 #include "content/common/file_utilities_messages.h"
 #include "content/common/indexed_db/proxy_webidbfactory_impl.h"
 #include "content/common/mime_registry_messages.h"
 #include "content/common/webmessageportchannel_impl.h"
 #include "content/worker/worker_thread.h"
 #include "ipc/ipc_sync_message_filter.h"
 #include "net/base/mime_util.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebFileInfo.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebBlobRegistry.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebURL.h"
 #include "webkit/glue/webfileutilities_impl.h"
 #include "webkit/glue/webkit_glue.h"
 
 using WebKit::WebBlobRegistry;
 using WebKit::WebClipboard;
+using WebKit::WebFileInfo;
 using WebKit::WebFileSystem;
 using WebKit::WebFileUtilities;
 using WebKit::WebKitPlatformSupport;
 using WebKit::WebMessagePortChannel;
 using WebKit::WebMimeRegistry;
 using WebKit::WebSandboxSupport;
 using WebKit::WebSharedWorkerRepository;
 using WebKit::WebStorageNamespace;
 using WebKit::WebString;
 using WebKit::WebURL;
 
 // TODO(kinuko): Probably this could be consolidated into
 // RendererWebKitPlatformSupportImpl::FileUtilities.
 class WorkerWebKitPlatformSupportImpl::FileUtilities
     : public webkit_glue::WebFileUtilitiesImpl {
  public:
   virtual bool getFileSize(const WebKit::WebString& path, long long& result);
   virtual bool getFileModificationTime(const WebKit::WebString& path,
                                        double& result);
+  virtual bool getFileInfo(const WebString& path, WebFileInfo& result);
 };
 
 static bool SendSyncMessageFromAnyThread(IPC::SyncMessage* msg) {
   WorkerThread* worker_thread = WorkerThread::current();
   if (worker_thread)
     return worker_thread->Send(msg);
 
   scoped_refptr<IPC::SyncMessageFilter> sync_msg_filter(
       ChildThread::current()->sync_message_filter());
   return sync_msg_filter->Send(msg);
@@ skipping 18 matching lines @@
   if (SendSyncMessageFromAnyThread(new FileUtilitiesMsg_GetFileModificationTime(
               webkit_glue::WebStringToFilePath(path), &time))) {
     result = time.ToDoubleT();
     return !time.is_null();
   }
 
   result = 0;
   return false;
 }
 
+bool WorkerWebKitPlatformSupportImpl::FileUtilities::getFileInfo(
+    const WebString& path,
+    WebFileInfo& web_file_info) {
+  base::PlatformFileInfo file_info;
+  base::PlatformFileError status;
+  if (!SendSyncMessageFromAnyThread(new FileUtilitiesMsg_GetFileInfo(
+           webkit_glue::WebStringToFilePath(path), &file_info, &status)) ||
+      status != base::PLATFORM_FILE_OK) {
+    return false;
+  }
+  webkit_glue::PlatformFileInfoToWebFileInfo(file_info, &web_file_info);
+  web_file_info.platformPath = path;
+  return true;
+}
+
 //------------------------------------------------------------------------------
 
 WorkerWebKitPlatformSupportImpl::WorkerWebKitPlatformSupportImpl() {
 }
 
 WorkerWebKitPlatformSupportImpl::~WorkerWebKitPlatformSupportImpl() {
 }
 
 WebClipboard* WorkerWebKitPlatformSupportImpl::clipboard() {
   NOTREACHED();
@@ skipping 193 matching lines @@
       new MimeRegistryMsg_GetPreferredExtensionForMimeType(
           UTF16ToASCII(mime_type), &file_extension));
   return webkit_glue::FilePathStringToWebString(file_extension);
 }
 
 WebBlobRegistry* WorkerWebKitPlatformSupportImpl::blobRegistry() {
   if (!blob_registry_.get())
     blob_registry_.reset(new WebBlobRegistryImpl(WorkerThread::current()));
   return blob_registry_.get();
 }