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

public/platform/WebBlobInfo.h

Index: public/platform/WebBlobInfo.h
diff --git a/public/platform/WebBlobInfo.h b/public/platform/WebBlobInfo.h
new file mode 100644
index 0000000000000000000000000000000000000000..d3a66ecef7b2fe7ad23ff64c41c4d00203c5a1c5
--- /dev/null
+++ b/public/platform/WebBlobInfo.h
@@ -0,0 +1,90 @@
+// 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 WebBlobInfo_h
+#define WebBlobInfo_h
+
+#include "WebCommon.h"
+#include "WebString.h"
+
+namespace blink {
+
+class WebBlobInfo {
+public:
+    WebBlobInfo()
+        : m_isFile(false)
+        , m_size(-1)
+        , m_lastModified(0)
+    {
+    }
+    WebBlobInfo(const WebString& uuid, const WebString& type, long long size)
+        : m_isFile(false)
+        , m_uuid(uuid)
+        , m_type(type)
+        , m_size(size)
+        , m_lastModified(0)
+    {
+    }
+    WebBlobInfo(const WebString& uuid, const WebString& filePath, const WebString& fileName, const WebString& type)
+        : m_isFile(true)
+        , m_uuid(uuid)
+        , m_type(type)
+        , m_size(-1)
+        , m_filePath(filePath)
+        , m_fileName(fileName)
+        , m_lastModified(0)
+    {
+    }
+    WebBlobInfo(const WebString& uuid, const WebString& filePath, const WebString& fileName, const WebString& 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)
+    {
+    }
+    bool isFile() const
+    {
+        return m_isFile;
+    }
+    const WebString& uuid() const
+    {
+        return m_uuid;
+    }
+    const WebString& type() const
+    {
+        return m_type;
+    }
+    long long size() const
+    {
+        return m_size;
+    }
+    const WebString& filePath() const
+    {
+        return m_filePath;
+    }
+    const WebString& fileName() const
+    {
+        return m_fileName;
+    }
+    double lastModified() const
+    {
+        return m_lastModified;
+    }
+
+private:
+    bool m_isFile;
+    WebString m_uuid;
+    WebString m_type; // MIME type
+    long long m_size;
+    WebString m_filePath; // Only for File
+    WebString m_fileName; // Only for File
+    double m_lastModified; // Only for File
+};
+
+} // namespace blink
+
+#endif