Use intptr_t for onTouch argument.

tools/viewer/Viewer.cpp

 /*
 * Copyright 2016 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
 #include "Viewer.h"
 
 #include "GMSlide.h"
@@ skipping 10 matching lines @@
 Application* Application::Create(int argc, char** argv, void* platformData) {
     return new Viewer(argc, argv, platformData);
 }
 
 static void on_paint_handler(SkCanvas* canvas, void* userData) {
     Viewer* vv = reinterpret_cast<Viewer*>(userData);
 
     return vv->onPaint(canvas);
 }
 
-static bool on_touch_handler(int owner, Window::InputState state, float x, float y, void* userData)
+static bool on_touch_handler(intptr_t owner, Window::InputState state, float x, float y, void* userData)
 {
     Viewer* viewer = reinterpret_cast<Viewer*>(userData);
 
     return viewer->onTouch(owner, state, x, y);
 }
 
 static void on_ui_state_changed_handler(const SkString& stateName, const SkString& stateValue, void* userData) {
     Viewer* viewer = reinterpret_cast<Viewer*>(userData);
 
     return viewer->onUIStateChanged(stateName, stateValue);
@@ skipping 283 matching lines @@
 
     fSlides[fCurrentSlide]->draw(canvas);
     canvas->restoreToCount(count);
 
     if (fDisplayStats) {
         drawStats(canvas);
     }
     fCommands.drawHelp(canvas);
 }
 
-bool Viewer::onTouch(int owner, Window::InputState state, float x, float y) {
+bool Viewer::onTouch(intptr_t owner, Window::InputState state, float x, float y) {
     void* castedOwner = reinterpret_cast<void*>(owner);
     SkPoint touchPoint = fDefaultMatrixInv.mapXY(x, y);
     switch (state) {
         case Window::kUp_InputState: {
             fGesture.touchEnd(castedOwner);
             break;
         }
         case Window::kDown_InputState: {
             fGesture.touchBegin(castedOwner, touchPoint.fX, touchPoint.fY);
             break;
@@ skipping 140 matching lines @@
         }
     } else if (stateName.equals(kSoftkeyStateName)) {
         if (!stateValue.equals(kSoftkeyHint)) {
             fCommands.onSoftkey(stateValue);
             updateUIState(); // This is still needed to reset the value to kSoftkeyHint
         }
     } else {
         SkDebugf("Unknown stateName: %s", stateName.c_str());
     }
 }