MTP Streaming: Linux streaming infrastructure changes.

BUG=110119

Review URL: https://codereview.chromium.org/107833003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@246996 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 27 insertions, 8 deletions

diff --git a/webkit/browser/blob/file_stream_reader.cc b/webkit/browser/blob/file_stream_reader.cc
new file mode 100644
index 0000000..1b56287
--- /dev/null
+++ b/webkit/browser/blob/file_stream_reader.cc
@@ -0,0 +1,21 @@
+// Copyright 2014 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 "webkit/browser/blob/file_stream_reader.h"
+
+#include "base/platform_file.h"
+#include "base/time/time.h"
+
+namespace webkit_blob {
+
+// Verify if the underlying file has not been modified.
+bool FileStreamReader::VerifySnapshotTime(
+    const base::Time& expected_modification_time,
+    const base::PlatformFileInfo& file_info) {
+  return expected_modification_time.is_null() ||
+         expected_modification_time.ToTimeT() ==
+             file_info.last_modified.ToTimeT();
+}
+
+}  // namespace webkit_blob
diff --git a/webkit/browser/blob/file_stream_reader.h b/webkit/browser/blob/file_stream_reader.h
index d60dfdb..2f3d060 100644
--- a/webkit/browser/blob/file_stream_reader.h
+++ b/webkit/browser/blob/file_stream_reader.h
@@ -12,6 +12,7 @@
 
 namespace base {
 class FilePath;
+struct PlatformFileInfo;
 class TaskRunner;
 class Time;
 }
@@ -56,6 +57,11 @@ class FileStreamReader {
                               int64 initial_offset,
                               const base::Time& expected_modification_time);
 
+  // Verify if the underlying file has not been modified.
+  WEBKIT_STORAGE_BROWSER_EXPORT static bool VerifySnapshotTime(
+      const base::Time& expected_modification_time,
+      const base::PlatformFileInfo& file_info);
+
   // It is valid to delete the reader at any time.  If the stream is deleted
   // while it has a pending read, its callback will not be called.
   virtual ~FileStreamReader() {}
diff --git a/webkit/browser/blob/local_file_stream_reader.cc b/webkit/browser/blob/local_file_stream_reader.cc
index 0686821..fdf2b06 100644
--- a/webkit/browser/blob/local_file_stream_reader.cc
+++ b/webkit/browser/blob/local_file_stream_reader.cc
@@ -22,14 +22,6 @@ const int kOpenFlagsForRead = base::PLATFORM_FILE_OPEN |
                               base::PLATFORM_FILE_READ |
                               base::PLATFORM_FILE_ASYNC;
 
-// Verify if the underlying file has not been modified.
-bool VerifySnapshotTime(const base::Time& expected_modification_time,
-                        const base::PlatformFileInfo& file_info) {
-  return expected_modification_time.is_null() ||
-         expected_modification_time.ToTimeT() ==
-             file_info.last_modified.ToTimeT();
-}
-
 }  // namespace
 
 FileStreamReader* FileStreamReader::CreateForLocalFile(