Revert gss changes to user widgets.

This breaks the CSS compatibility of the SDK.

Proper solution needs to extract CSS to a resource and provide
both css and gss files.

Change-Id: Ie31397978a32541b630033b5c9ce3bc462225e15

user/src/com/google/gwt/editor/ui/client/ValueBoxEditorDecorator.ui.xml

diff --git a/user/src/com/google/gwt/editor/ui/client/ValueBoxEditorDecorator.ui.xml b/user/src/com/google/gwt/editor/ui/client/ValueBoxEditorDecorator.ui.xml
index e0a0528..3eb8b1d 100644
--- a/user/src/com/google/gwt/editor/ui/client/ValueBoxEditorDecorator.ui.xml
+++ b/user/src/com/google/gwt/editor/ui/client/ValueBoxEditorDecorator.ui.xml
@@ -1,5 +1,5 @@
 <ui:UiBinder xmlns:ui='urn:ui:com.google.gwt.uibinder' xmlns:g='urn:import:com.google.gwt.user.client.ui'>
-  <ui:style gss="true">
+  <ui:style>
     .contents {
       display: inline;
     }
@@ -14,4 +14,4 @@
     <div class="{style.errorLabel}" ui:field="errorLabel" />
     <g:SimplePanel ui:field="contents" stylePrimaryName="{style.contents}" />
   </g:HTMLPanel>
-</ui:UiBinder>
\ No newline at end of file
+</ui:UiBinder>

user/src/com/google/gwt/user/client/ui/NativeHorizontalScrollbar.ui.xml

diff --git a/user/src/com/google/gwt/user/client/ui/NativeHorizontalScrollbar.ui.xml b/user/src/com/google/gwt/user/client/ui/NativeHorizontalScrollbar.ui.xml
index cb5203c..54858d9 100644
--- a/user/src/com/google/gwt/user/client/ui/NativeHorizontalScrollbar.ui.xml
+++ b/user/src/com/google/gwt/user/client/ui/NativeHorizontalScrollbar.ui.xml
@@ -3,7 +3,7 @@
   xmlns:ui="urn:ui:com.google.gwt.uibinder"
   xmlns:g="urn:import:com.google.gwt.user.client.ui">
 
-  <ui:style gss="true">
+  <ui:style>
     .viewport {
       position: relative;
       overflow: hidden;
@@ -41,4 +41,4 @@
         class="{style.content}" />
     </div>
   </div>
-</ui:UiBinder> 
\ No newline at end of file
+</ui:UiBinder>

user/src/com/google/gwt/user/client/ui/NativeVerticalScrollbar.ui.xml

diff --git a/user/src/com/google/gwt/user/client/ui/NativeVerticalScrollbar.ui.xml b/user/src/com/google/gwt/user/client/ui/NativeVerticalScrollbar.ui.xml
index 1ad3216..bbb4a77 100644
--- a/user/src/com/google/gwt/user/client/ui/NativeVerticalScrollbar.ui.xml
+++ b/user/src/com/google/gwt/user/client/ui/NativeVerticalScrollbar.ui.xml
@@ -3,7 +3,7 @@
   xmlns:ui="urn:ui:com.google.gwt.uibinder"
   xmlns:g="urn:import:com.google.gwt.user.client.ui">
 
-  <ui:style gss="true">
+  <ui:style>
     .viewport {
       position: relative;
       overflow: hidden;
@@ -11,14 +11,16 @@
       direction: ltr;
     }
     /* scrollable is in LTR mode even if the body is in RTL mode. */
-    .scrollable {
-      position: absolute;
-      top: 0;
-      /* @noflip */ right: 0;
-      height: 100%;
-      width: 100px;
-      overflow-y: scroll;
-      overflow-x: hidden;
+    @noflip {
+      .scrollable {
+        position: absolute;
+        top: 0;
+        right: 0;
+        height: 100%;
+        width: 100px;
+        overflow-y: scroll;
+        overflow-x: hidden;
+      }
     }
 
   </ui:style>

user/src/com/google/gwt/user/client/ui/NotificationMole.ui.xml

diff --git a/user/src/com/google/gwt/user/client/ui/NotificationMole.ui.xml b/user/src/com/google/gwt/user/client/ui/NotificationMole.ui.xml
index 063765f..a075b0b 100644
--- a/user/src/com/google/gwt/user/client/ui/NotificationMole.ui.xml
+++ b/user/src/com/google/gwt/user/client/ui/NotificationMole.ui.xml
@@ -1,7 +1,7 @@
 <!DOCTYPE ui:UiBinder SYSTEM "http://dl.google.com/gwt/DTD/xhtml.ent">
 <ui:UiBinder xmlns:ui='urn:ui:com.google.gwt.uibinder'
   xmlns:g='urn:import:com.google.gwt.user.client.ui'>
-  <ui:style gss="true">
+  <ui:style>
     .container {
       position: absolute;
       height: 0;
@@ -34,4 +34,4 @@
       </div>
     </div>
   </g:HTMLPanel>
-</ui:UiBinder>
\ No newline at end of file
+</ui:UiBinder>