SamplePdfFileViewer: delete dead code

Change-Id: I4ba5f22e4370665699546c82f0948a14f9396526
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/225543
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
diff --git a/gn/samples.gni b/gn/samples.gni
index 245e326..d016d41 100644
--- a/gn/samples.gni
+++ b/gn/samples.gni
@@ -65,7 +65,6 @@
   "$_samplecode/SamplePathClip.cpp",
   "$_samplecode/SamplePathEffects.cpp",
   "$_samplecode/SamplePathOverstroke.cpp",
-  "$_samplecode/SamplePdfFileViewer.cpp",
   "$_samplecode/SamplePolyToPoly.cpp",
   "$_samplecode/SampleQuadStroker.cpp",
   "$_samplecode/SampleRectanizer.cpp",
diff --git a/samplecode/SamplePdfFileViewer.cpp b/samplecode/SamplePdfFileViewer.cpp
deleted file mode 100644
index 9b6b54d..0000000
--- a/samplecode/SamplePdfFileViewer.cpp
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "include/core/SkTypes.h"
-
-#ifdef SAMPLE_PDF_FILE_VIEWER
-
-#include "include/core/SkCanvas.h"
-#include "include/core/SkColorFilter.h"
-#include "include/core/SkColorPriv.h"
-#include "include/core/SkGraphics.h"
-#include "include/core/SkPath.h"
-#include "include/core/SkPicture.h"
-#include "include/core/SkRegion.h"
-#include "include/core/SkShader.h"
-#include "include/core/SkTime.h"
-#include "include/core/SkTypeface.h"
-#include "include/effects/SkGradientShader.h"
-#include "include/utils/SkRandom.h"
-#include "samplecode/Sample.h"
-#include "src/core/SkOSFile.h"
-#include "src/utils/SkUTF.h"
-#include "SkPdfRenderer.h"
-
-class PdfFileViewer : public Sample {
-private:
-    SkString    fFilename;
-    SkPicture*  fPicture;  // TODO(edisonn): multiple pages, one page / picture, make it an array
-
-    static SkPicture* LoadPdf(const char path[]) {
-        std::unique_ptr<SkPdfRenderer> renderer(SkPdfRenderer::CreateFromFile(path));
-        if (nullptr == renderer.get()) {
-            return nullptr;
-        }
-
-        SkPicture* pic = new SkPicture;
-        SkCanvas* canvas = pic->beginRecording((int) renderer->MediaBox(0).width(),
-                                               (int) renderer->MediaBox(0).height());
-        renderer->renderPage(0, canvas, renderer->MediaBox(0));
-        pic->endRecording();
-        return pic;
-    }
-
-public:
-    PdfFileViewer(const char name[] = nullptr) : fFilename(name) {
-        fPicture = nullptr;
-    }
-
-    virtual ~PdfFileViewer() {
-        SkSafeUnref(fPicture);
-    }
-
-protected:
-    virtual SkString name() {
-        SkString name("P:");
-        const char* basename = strrchr(fFilename.c_str(), SkPATH_SEPARATOR);
-        name.append(basename ? basename+1: fFilename.c_str());
-        return name;
-    }
-
-    virtual bool onEvent(const SkEvent& evt) {
-        // TODO(edisonn): add here event handlers to disable clipping, or to show helpful info
-        // like pdf object from click, ...
-        // TODO(edisonn): first, next, prev, last page navigation + slideshow
-        return this->INHERITED::onEvent(evt);
-    }
-
-    virtual void onDrawContent(SkCanvas* canvas) {
-        if (!fPicture) {
-            fPicture = LoadPdf(fFilename.c_str());
-        }
-        if (fPicture) {
-            canvas->drawPicture(*fPicture);
-        }
-    }
-
-private:
-    typedef Sample INHERITED;
-};
-
-Sample* CreateSamplePdfFileViewer(const char filename[]);
-Sample* CreateSamplePdfFileViewer(const char filename[]) {
-    return new PdfFileViewer(filename);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-#if 0
-static Sample* MyFactory() { return new PdfFileViewer; }
-static SampleRegister reg(MyFactory);
-#endif
-
-#endif  // SAMPLE_PDF_FILE_VIEWER