pdfviewer: code cleanup - add licence on files, make replace __DEFINE__foo with foo_DEFINED to matc…

experimental/PdfViewer/SkTrackDevice.h

-#ifndef EXPERIMENTAL_PDFVIEWER_SKTRACKDEVICE_H_
-#define EXPERIMENTAL_PDFVIEWER_SKTRACKDEVICE_H_
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkTrackDevice_DEFINED
+#define SkTrackDevice_DEFINED
 
 #include "SkDevice.h"
 #include "SkTracker.h"
 
 class SkTrackDevice : public SkDevice {
 public:
     SK_DECLARE_INST_COUNT(SkTrackDevice)
 
     SkTrackDevice(const SkBitmap& bitmap) : SkDevice(bitmap)
                                           , fTracker(NULL) {}
@@ skipping 153 matching lines @@
             fTracker->after(accessBitmap(false));
         }
     }
 
 private:
     SkTracker* fTracker;
 
     typedef SkDevice INHERITED;
 };
 
-#endif  // EXPERIMENTAL_PDFVIEWER_SKTRACKDEVICE_H_
+#endif  // SkTrackDevice_DEFINED