[SkDebugger] Remove unneeded SkDebuggerGUI includes

R=robertphillips@google.com,mtklein@google.com

Review URL: https://codereview.chromium.org/1411963006
diff --git a/debugger/QT/SkDebuggerGUI.cpp b/debugger/QT/SkDebuggerGUI.cpp
index b4eb0c7..44dfb93 100644
--- a/debugger/QT/SkDebuggerGUI.cpp
+++ b/debugger/QT/SkDebuggerGUI.cpp
@@ -6,9 +6,7 @@
  */
 
 #include "SkDebuggerGUI.h"
-#include "SkPictureData.h"
-#include "SkPicturePlayback.h"
-#include "SkPictureRecord.h"
+#include "SkPicture.h"
 #include <QListWidgetItem>
 #include <QtGui>
 #include "sk_tool_utils.h"