Allow testdriver-vendor.js to send more than one key

maxlength-number.html sends multiple keys in one call. Iterate across
the keys string to send more than one character.

Move another test that uses the actions API to the unsupported section.

Reland 39760144 without the pause.html
expectation removed.

Change-Id: I9cb0a2f68a5792615c711d59e29dbca9830e2f44
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2133872
Commit-Queue: Dave Tapuska <dtapuska@chromium.org>
Reviewed-by: Robert Ma <robertma@chromium.org>
Cr-Commit-Position: refs/heads/master@{#755962}

third_party/blink/web_tests/TestExpectations

@@ -2869,6 +2869,7 @@ crbug.com/1015331 external/wpt/css/css-text/white-space/eol-spaces-bidi-001.html
 # needs implementation of test_driver_internal.action_sequence
 crbug.com/893480 external/wpt/editing/run/caretnavigation.html [ Timeout ]
 crbug.com/893480 external/wpt/input-events/input-events-typing.html [ Timeout ]
+crbug.com/893480 external/wpt/infrastructure/testdriver/actions/eventOrder.html [ Timeout ]
 crbug.com/893480 external/wpt/infrastructure/testdriver/actions/elementTiming.html [ Timeout ]
 crbug.com/893480 external/wpt/infrastructure/testdriver/actions/multiDevice.html [ Failure Timeout ]
 crbug.com/893480 external/wpt/pointerevents/pointerevent_touch-action-keyboard.html [ Failure Timeout ]
@@ -3283,12 +3284,6 @@ crbug.com/626703 [ Win ] external/wpt/content-dpr/content-dpr-various-elements.h
 crbug.com/626703 [ Linux ] external/wpt/websockets/opening-handshake/005.html [ Timeout ]
 crbug.com/626703 [ Mac ] external/wpt/websockets/opening-handshake/005.html [ Timeout ]
 crbug.com/626703 [ Win ] external/wpt/websockets/opening-handshake/005.html [ Timeout ]
-crbug.com/626703 [ Linux ] external/wpt/html/semantics/forms/the-input-element/maxlength-number.html [ Timeout ]
-crbug.com/626703 [ Mac ] external/wpt/html/semantics/forms/the-input-element/maxlength-number.html [ Timeout ]
-crbug.com/626703 [ Win ] external/wpt/html/semantics/forms/the-input-element/maxlength-number.html [ Timeout ]
-crbug.com/626703 [ Linux ] virtual/web-components-v0-disabled/external/wpt/html/semantics/forms/the-input-element/maxlength-number.html [ Timeout ]
-crbug.com/626703 [ Mac ] virtual/web-components-v0-disabled/external/wpt/html/semantics/forms/the-input-element/maxlength-number.html [ Timeout ]
-crbug.com/626703 [ Win ] virtual/web-components-v0-disabled/external/wpt/html/semantics/forms/the-input-element/maxlength-number.html [ Timeout ]
 crbug.com/626703 [ Linux ] external/wpt/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/blob-data.https.html [ Timeout ]
 crbug.com/626703 [ Mac ] external/wpt/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/blob-data.https.html [ Timeout ]
 crbug.com/626703 [ Win ] external/wpt/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/blob-data.https.html [ Timeout ]
@@ -3606,7 +3601,6 @@ crbug.com/626703 external/wpt/html/semantics/scripting-1/the-script-element/modu
 crbug.com/626703 external/wpt/html/semantics/scripting-1/the-script-element/module/dynamic-import/no-active-script-manual-module.html [ Timeout ]
 crbug.com/626703 external/wpt/html/webappapis/user-prompts/newline-normalization-manual.html [ Skip ]
 crbug.com/626703 [ Mac ] external/wpt/infrastructure/testdriver/actions/pause.html [ Pass Timeout ]
-crbug.com/626703 external/wpt/infrastructure/testdriver/actions/eventOrder.html [ Timeout ]
 crbug.com/626703 external/wpt/css/css-text/writing-system/writing-system-text-transform-001.html [ Failure ]
 crbug.com/903383 external/wpt/css/filter-effects/css-filters-animation-combined-001.html [ Failure ]
 crbug.com/903383 external/wpt/css/filter-effects/css-filters-animation-blur.html [ Failure ]

third_party/blink/web_tests/external/wpt/infrastructure/testdriver/send_keys-expected.txt

-This is a testharness.js-based test.
-FAIL TestDriver send keys method assert_unreached: send keys failed Reached unreachable code
-Harness: the test ran to completion.
-

third_party/blink/web_tests/resources/testdriver-vendor.js

@@ -97,29 +97,30 @@
           eventSender.mouseUp();
           return;
       }
-      if (keys.length > 1)
-        reject(new Error("No support for a sequence of multiple keys"));
-      let eventSenderKeys = keys;
-      let charCode = keys.charCodeAt(0);
-      // See https://w3c.github.io/webdriver/#keyboard-actions and
-      // EventSender::KeyDown().
-      if (charCode == 0xE004) {
-        eventSenderKeys = "Tab";
-      } else if (charCode == 0xE050) {
-        eventSenderKeys = "ShiftRight";
-      } else if (charCode == 0xE012) {
-        eventSenderKeys = "ArrowLeft";
-      } else if (charCode == 0xE013) {
-        eventSenderKeys = "ArrowUp";
-      } else if (charCode == 0xE014) {
-        eventSenderKeys = "ArrowRight";
-      } else if (charCode == 0xE015) {
-        eventSenderKeys = "ArrowDown";
-      } else if (charCode >= 0xE000 && charCode <= 0xF8FF) {
-        reject(new Error("No support for this code: U+" + charCode.toString(16)));
-      }
       window.requestAnimationFrame(() => {
-        window.eventSender.keyDown(eventSenderKeys);
+        for(var i = 0; i < keys.length; ++i) {
+          let eventSenderKeys = keys[i];
+          let charCode = keys.charCodeAt(i);
+          // See https://w3c.github.io/webdriver/#keyboard-actions and
+          // EventSender::KeyDown().
+          if (charCode == 0xE004) {
+            eventSenderKeys = "Tab";
+          } else if (charCode == 0xE050) {
+            eventSenderKeys = "ShiftRight";
+          } else if (charCode == 0xE012) {
+            eventSenderKeys = "ArrowLeft";
+          } else if (charCode == 0xE013) {
+            eventSenderKeys = "ArrowUp";
+          } else if (charCode == 0xE014) {
+            eventSenderKeys = "ArrowRight";
+          } else if (charCode == 0xE015) {
+            eventSenderKeys = "ArrowDown";
+          } else if (charCode >= 0xE000 && charCode <= 0xF8FF) {
+            reject(new Error("No support for this code: U+" + charCode.toString(16)));
+            return;
+          }
+          window.eventSender.keyDown(eventSenderKeys);
+        }
         resolve();
       });
     });