[DevTools] Migrate inspector-protocol/{input,network} tests to new harness

third_party/WebKit/LayoutTests/inspector-protocol/input/dispatchKeyEvent-focus.js

+(async function(testRunner) {
+  let {page, session, dp} = await testRunner.startHTML(`
+    <div id='inputs'>
+      <input onfocus='log("focus foo")' onblur='log("blur foo")' id='foo' autofocus>
+      <input onfocus='log("focus bar")' onblur='log("blur bar")' id='bar'>
+      <input onfocus='log("focus baz")' onblur='log("blur baz")' id='baz'>
+    </div>
+  `, ``);
+
+  function type(text) {
+    for (var i = 0; i < text.length; ++i) {
+      var dec = text.charCodeAt(i);
+      var hex = 'U+00' + Number(dec).toString(16);
+      dp.Input.dispatchKeyEvent({
+        'type': 'rawKeyDown',
+        'windowsVirtualKeyCode': dec,
+        'key': text[i]
+      });
+      dp.Input.dispatchKeyEvent({
+        'type': 'char',
+        'text': text[i],
+        'key': text[i],
+        'unmodifiedText': text[i]
+      });
+      dp.Input.dispatchKeyEvent({
+        'type': 'keyUp',
+        'windowsVirtualKeyCode': dec,
+        'key': text[i]
+      });
+    }
+  }
+
+  function typeTab() {
+    dp.Input.dispatchKeyEvent({
+      'type': 'rawKeyDown',
+      'windowsVirtualKeyCode': 9,
+      'key': 'Tab',
+    });
+    dp.Input.dispatchKeyEvent({
+      'type': 'keyUp',
+      'windowsVirtualKeyCode': 9,
+      'key': 'Tab',
+    });
+  }
+
+  await session.evaluate(`
+    window.logs = [];
+    function log(text) {
+      logs.push(text);
+    }
+    window.internals.setFocused(false);

[allada, 2017/06/26 22:02:53]

It looks like the old test was bluring then running the test. Here we are
running the test then bluring. I think it may introduce flakeyness if we keep
this pattern in the new test because we do not know what state the focus is in.
Lets clear the log after setFocused() to ensure non-flakeyness.

[dgozman, 2017/06/26 23:22:07]

Done.

+  `);
+  type('foo');

[allada, 2017/06/26 22:02:53]

At this point the field should be blured and we are typing... Does autofocus
cause the focus to move to it if typing in the page with no target?

[dgozman, 2017/06/26 23:22:07]

As I understand it, autofocus affects what is focused inside the page, while we
artificially unfocus the page itself for some internal reasons. That should not
reset the focused or to-be-focused element inside.

+  typeTab();
+  type('bar');
+  typeTab();
+  testRunner.log(await session.evaluate(`
+    log('================');
+    log('value of foo:' + document.getElementById('foo').value);
+    log('value of bar:' + document.getElementById('bar').value);
+    log('value of baz:' + document.getElementById('baz').value);
+    window.internals.setFocused(true);
+    logs.join('\\n')
+  `));
+  testRunner.completeTest();
+})