Move textarea-related tests to fast/forms/textarea/, part 1.

third_party/WebKit/LayoutTests/fast/forms/resources/textarea-input-event.js

-description('Test for <a href="https://bugs.webkit.org/show_bug.cgi?id=15189">https://bugs.webkit.org/show_bug.cgi?id=15189</a><br>');
-
-var handleTextareaOnInputCallCount = 0;
-var handleDivOnInputCallCount = 0;
-var successfullyParsed = false;
-
-function handleDivOnInput(e) {
-    if (e.target !== ta) {
-        testFailed('Wrong target');
-    } else {
-        handleDivOnInputCallCount++;
-        shouldBeEqualToString('ta.value', 'x');
-    }
-}
-
-function handleTextareaOnInput(e) {
-    if (e.target !== ta) {
-        testFailed('Wrong target');
-    } else {
-        handleTextareaOnInputCallCount++;
-        shouldBeEqualToString('ta.value', 'x');
-    }
-}
-
-var ta = document.getElementById('ta');
-ta.setAttribute('oninput', 'handleTextareaOnInput(event)');
-
-// Change the value before focusing.
-ta.value = '';
-
-ta.focus();
-
-if (window.eventSender) {
-    eventSender.keyDown('x', []);
-    shouldEvaluateTo('handleTextareaOnInputCallCount', 1);
-    shouldEvaluateTo('handleDivOnInputCallCount', 1);
-    
-    // Change programmatically
-    ta.value = 'programmatically';
-    
-    // Should not have triggered the events.
-    shouldEvaluateTo('handleTextareaOnInputCallCount', 1);
-    shouldEvaluateTo('handleDivOnInputCallCount', 1);
-}