Coverity: Initialize member variables.

ui/base/clipboard/clipboard_gtk.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 "ui/base/clipboard/clipboard.h"
 
 #include <gtk/gtk.h>
 #include <X11/extensions/Xfixes.h>
 #include <X11/Xatom.h>
 #include <map>
@@ skipping 186 matching lines @@
       new_pixels[idx + 2] = pixels[idx];
       new_pixels[idx + 3] = pixels[idx + 3];
     }
   }
 
   return new_pixels;
 }
 
 }  // namespace
 
-Clipboard::FormatType::FormatType() {
+Clipboard::FormatType::FormatType() : data_(GDK_NONE) {
 }
 
 Clipboard::FormatType::FormatType(const std::string& format_string)
     : data_(StringToGdkAtom(format_string)) {
 }
 
 Clipboard::FormatType::FormatType(const GdkAtom& native_format)
     : data_(native_format) {
 }
 
@@ skipping 472 matching lines @@
       return clipboard_;
     case BUFFER_SELECTION:
       return primary_selection_;
     default:
       NOTREACHED();
       return NULL;
   }
 }
 
 }  // namespace ui