make input type="search" RTL direction aware

Source/core/html/forms/SearchInputType.cpp

Index: Source/core/html/forms/SearchInputType.cpp
diff --git a/Source/core/html/forms/SearchInputType.cpp b/Source/core/html/forms/SearchInputType.cpp
index 7bd41263b88cdd09654541190ed69b0238de3428..415513eb56c6f8d6ad59cd05695a4990c2ea0de5 100644
--- a/Source/core/html/forms/SearchInputType.cpp
+++ b/Source/core/html/forms/SearchInputType.cpp
@@ -95,8 +95,14 @@ void SearchInputType::createShadowSubtree()
     ASSERT(container);
     ASSERT(viewPort);
 
-    container->insertBefore(SearchFieldDecorationElement::create(element().document()), viewPort);
-    container->insertBefore(SearchFieldCancelButtonElement::create(element().document()), viewPort->nextSibling());
+    AtomicString dirAttributeValue = element().fastGetAttribute(dirAttr);

[tkent, 2013/10/28 10:17:09]

This works only for <input type=search dir=rtl>, and doesn't work for <span
dir=rtl><input type=search></span>.

You should have removed the following ruleset in Source/css/html.css, and didn't
need to update any C++ code.
Anyway, such change doesn't work well on OSX.  We need a decision.

+    if (dirAttributeValue.isEmpty() || equalIgnoringCase(dirAttributeValue, "ltr")) {
+        container->insertBefore(SearchFieldDecorationElement::create(element().document()), viewPort);
+        container->insertBefore(SearchFieldCancelButtonElement::create(element().document()), viewPort->nextSibling());
+    } else {
+        container->insertBefore(SearchFieldCancelButtonElement::create(element().document()), viewPort);
+        container->insertBefore(SearchFieldDecorationElement::create(element().document()), viewPort->nextSibling());
+    }
 }
 
 void SearchInputType::handleKeydownEvent(KeyboardEvent* event)