Remove VisualBench and its Android implementation.

tools/VisualBench/VisualBenchmarkStream.h

-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- *
- */
-
-#ifndef VisualBenchmarkStream_DEFINED
-#define VisualBenchmarkStream_DEFINED
-
-#include "Benchmark.h"
-#include "gm.h"
-#include "SkCommandLineFlags.h"
-#include "SkPicture.h"
-
-DECLARE_string(match);
-
-class VisualBenchmarkStream {
-public:
-    VisualBenchmarkStream(const SkSurfaceProps&, bool justSKP = false);
-
-    static sk_sp<SkPicture> ReadPicture(const char* path);
-
-    Benchmark* next();
-    Benchmark* current() { return fBenchmark.get(); }
-
-private:
-    Benchmark* innerNext();
-
-    SkSurfaceProps fSurfaceProps;
-    const BenchRegistry* fBenches;
-    const skiagm::GMRegistry* fGMs;
-    SkTArray<SkString> fSKPs;
-    SkAutoTUnref<Benchmark> fBenchmark;
-
-    const char* fSourceType;  // What we're benching: bench, GM, SKP, ...
-    const char* fBenchType;   // How we bench it: micro, playback, ...
-    int fCurrentSKP;
-    bool fIsWarmedUp;
-};
-
-#endif