Renamed debug_viewer to debug_window to avoid confusion between year specific debug_viewer and debug_window.

Change-Id: I0bbd015f12abf3ffaabfd1181ff87f894a301495
diff --git a/aos/vision/blob/stream_view.h b/aos/vision/blob/stream_view.h
index a6a661a..4cee7b4 100644
--- a/aos/vision/blob/stream_view.h
+++ b/aos/vision/blob/stream_view.h
@@ -2,7 +2,7 @@
 #define _AOS_VISION_BLOB_STREAM_VIEW_H_
 
 #include "aos/vision/blob/range_image.h"
-#include "aos/vision/debug/debug_viewer.h"
+#include "aos/vision/debug/debug_window.h"
 #include "aos/vision/image/image_types.h"
 
 #include <memory>
@@ -10,10 +10,10 @@
 namespace aos {
 namespace vision {
 
-class BlobStreamViewer : public DebugViewer {
+class BlobStreamViewer : public DebugWindow {
  public:
-  BlobStreamViewer() : DebugViewer(false) {}
-  explicit BlobStreamViewer(bool flip) : DebugViewer(flip) {}
+  BlobStreamViewer() : DebugWindow(false) {}
+  explicit BlobStreamViewer(bool flip) : DebugWindow(flip) {}
 
   void Submit(ImageFormat fmt, const BlobList &blob_list) {
     SetFormatAndClear(fmt);
@@ -77,7 +77,7 @@
   }
 
   // Backwards compatible.
-  DebugViewer *view() { return this; }
+  DebugWindow *view() { return this; }
 
   ImagePtr img() { return image_.get(); }