Rename VulkanViewer to Viewer, take 2.

tools/vulkan/viewer/Slide.h

Index: tools/vulkan/viewer/Slide.h
diff --git a/tools/vulkan/viewer/Slide.h b/tools/vulkan/viewer/Slide.h
deleted file mode 100644
index cdc225b0a8c24b74762d075d6a4f6b21a1353909..0000000000000000000000000000000000000000
--- a/tools/vulkan/viewer/Slide.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
-* Copyright 2016 Google Inc.
-*
-* Use of this source code is governed by a BSD-style license that can be
-* found in the LICENSE file.
-*/
-
-#ifndef Slide_DEFINED
-#define Slide_DEFINED
-
-#include "SkRefCnt.h"
-#include "SkSize.h"
-#include "SkString.h"
-
-class SkCanvas;
-class SkAnimTimer;
-
-class Slide : public SkRefCnt {
-public:
-    virtual ~Slide() {}
-
-    virtual SkISize getDimensions() const = 0;
-
-    virtual void draw(SkCanvas* canvas) = 0;
-    virtual bool animate(const SkAnimTimer&) { return false;  }
-    virtual void load() {}
-    virtual void unload() {}
-
-    SkString getName() { return fName; }
-
-protected:
-    SkString    fName;
-};
-
-
-#endif