Revert of Handle long press in PDF documents.

chrome/test/data/pdf/touch_handling_test.js

-// Copyright 2017 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-function sendTouchStart(touches) {
-  var id = 0;
-  let touchList = touches.map(function(xy) {
-    var touchInit = {
-      identifier: id++,
-      target: viewer.plugin_,
-      clientX: xy.x,
-      clientY: xy.y,
-    };
-
-    return new window.Touch(touchInit);
-  });
-
-  viewer.plugin_.dispatchEvent(new TouchEvent('touchstart', {
-    touches: touchList,
-    targetTouches: touchList,
-    changedtouches: touchList
-  }));
-}
-
-function createContextMenuEvent() {
-  return new MouseEvent('contextmenu', {
-    cancelable: true,
-    sourceCapabilities: new InputDeviceCapabilities({firesTouchEvents: true})
-  });
-}
-
-var tests = [
-  // Test suppression of the context menu on single touch.
-  function testContextMenuSingleTouch() {
-    sendTouchStart([{x: 10, y: 10}]);
-
-    let event = createContextMenuEvent();
-    // Dispatch event will be false if the event is cancellable and one of the
-    // handlers called preventDefault.
-    chrome.test.assertFalse(document.dispatchEvent(event),
-        "Should have called preventDefault() for single touch.");
-    chrome.test.succeed();
-  },
-
-  // Test allowing of context menu on double touch.
-  function testContextMenuDoubleTouch() {
-    sendTouchStart([{x: 10, y: 10}, {x: 15, y: 15}]);
-
-    let event = createContextMenuEvent();
-    chrome.test.assertTrue(document.dispatchEvent(event),
-        "Should not have called preventDefault() for double touch.");
-    chrome.test.succeed();
-  },
-
-  // Test long press selects word.
-  function testLongPressSelectsText() {
-    var client = new PDFScriptingAPI(window, window);
-
-    sendTouchStart([{x: 336, y: 163}]);
-    window.setTimeout(function() {
-      client.getSelectedText(chrome.test.callbackPass(function(selectedText) {
-        chrome.test.assertEq('some', selectedText);
-      }));
-      chrome.test.succeed();
-    }, 350);
-  }
-];
-
-var scriptingAPI = new PDFScriptingAPI(window, window);
-scriptingAPI.setLoadCallback(function() {
-  chrome.test.runTests(tests);
-});