Add two classes [as yet unused] needed for upcoming IDB Blob support.

Source/platform/blob/BlobInfo.h

+// 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.
+
+#ifndef BlobInfo_h
+#define BlobInfo_h
+
+#include "wtf/text/WTFString.h"
+
+namespace WebCore {
+
+class BlobInfo {

[abarth-chromium, 2014/04/01 21:48:04]

You might not need this class.  Code that would use this class might be able to
just use WebBlobInfo directly.

+public:
+    BlobInfo()
+        : m_isFile(false)
+        , m_size(-1)
+        , m_lastModified(0)
+    {
+    }
+    BlobInfo(const String& uuid, const String& type, long long size)
+        : m_isFile(false)
+        , m_uuid(uuid)
+        , m_type(type)
+        , m_size(size)
+        , m_lastModified(0)
+    {
+        ASSERT(size >= 0);
+    }
+    BlobInfo(const String& uuid, const String& filePath, const String& fileName, const String& type, double lastModified, long long size)
+        : m_isFile(true)
+        , m_uuid(uuid)
+        , m_type(type)
+        , m_size(size)
+        , m_filePath(filePath)
+        , m_fileName(fileName)
+        , m_lastModified(lastModified)
+    {
+    }
+    BlobInfo(const String& uuid, const String& filePath, const String& fileName, const String& type)
+        : m_isFile(true)
+        , m_uuid(uuid)
+        , m_type(type)
+        , m_size(-1)
+        , m_filePath(filePath)
+        , m_fileName(fileName)
+        , m_lastModified(0)
+    {
+    }
+
+    bool isFile() const { return m_isFile; }
+    const String& uuid() const { return m_uuid; }
+    const String& type() const { return m_type; }
+    long long size() const { return m_size; }
+    const String& filePath() const { return m_filePath; }
+    const String& fileName() const { return m_fileName; }
+    double lastModified() const { return m_lastModified; }
+
+private:
+    bool m_isFile;
+    String m_uuid;
+    String m_type; // mime type
+    long long m_size;
+    String m_filePath; // Only for File
+    String m_fileName; // Only for File
+    double m_lastModified; // only for File
+};
+
+} // namespace WebCore
+
+#endif // BlobInfo_h