INPUT text field: Fix a chopped editing text issue.

third_party/WebKit/LayoutTests/fast/forms/text/text-font-height-mismatch.html

Index: third_party/WebKit/LayoutTests/fast/forms/text/text-font-height-mismatch.html
diff --git a/third_party/WebKit/LayoutTests/fast/forms/text/text-font-height-mismatch.html b/third_party/WebKit/LayoutTests/fast/forms/text/text-font-height-mismatch.html
index 168dea308b32f5814eb17eb71f8e7e46cdfde67c..5ac3278b3a9fc4b9c6efdd5b09dad04c8c2e5ab8 100644
--- a/third_party/WebKit/LayoutTests/fast/forms/text/text-font-height-mismatch.html
+++ b/third_party/WebKit/LayoutTests/fast/forms/text/text-font-height-mismatch.html
@@ -19,7 +19,12 @@ if (window.testRunner)
 document.fonts.ready.then(function() {
     document.getElementById('webfont').innerHTML = '<input style="border:' +
         'solid 1px black; font-size:16px; font-family:NotoSansCJK;"' + 
+        'value="&#x3075; ABCgjy">' +

[Julien - ping for review, 2016/01/14 16:46:18]

In the new output, the value from this first <input> is now clipped. I am
assuming that this is expected as it is shifted a bit lower than before the
change.

[tkent, 2016/01/15 02:09:49]

As for this INPUT, I think no pixel differences.  The clipped text in the third
INPUT is an expected behavior change because we clip text by content box.

+        '<input style="border: solid 1px black; font-size:16px; ' +
+        'line-height:17px; height:24px; font-family:NotoSansCJK;"' + 
         'value="&#x3075; ABCgjy">';
+    // The first INPUT is for crbug.com/519331.
+    // The second INPUT is for crbug.com/576589.
     if (window.testRunner)
         testRunner.notifyDone();
 });