Hide syntax highlighting checkbox in unified view

We force it disabled, to ensure the add/remove colors come through.
Don't show the checkbox for the user to try twiddling.

Change-Id: Ia8f96bcce1c31acd147ec77520d69ac9d4839e2b
Signed-off-by: Shawn O. Pearce <sop@google.com>
diff --git a/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/PatchScreen.java b/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/PatchScreen.java
index 28e1202..ea0bd18 100644
--- a/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/PatchScreen.java
+++ b/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/PatchScreen.java
@@ -45,6 +45,7 @@
 import com.google.gwt.event.logical.shared.ValueChangeHandler;
 import com.google.gwt.event.shared.HandlerRegistration;
 import com.google.gwt.user.client.Command;
+import com.google.gwt.user.client.DOM;
 import com.google.gwt.user.client.DeferredCommand;
 import com.google.gwt.user.client.rpc.AsyncCallback;
 import com.google.gwt.user.client.ui.DisclosurePanel;
@@ -84,6 +85,9 @@
     public Unified(final Patch.Key id, final int patchIndex,
         final PatchTable patchTable) {
       super(id, patchIndex, patchTable);
+      DOM.setStyleAttribute(settingsPanel.getSyntaxHighlightingCheckBox()
+          .getElement(), "visibility", "hidden");
+
       final PatchScriptSettings s = settingsPanel.getValue();
       s.getPrettySettings().setSyntaxHighlighting(false);
       settingsPanel.setValue(s);
diff --git a/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/PatchScriptSettingsPanel.java b/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/PatchScriptSettingsPanel.java
index d1ce86b..471215b 100644
--- a/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/PatchScriptSettingsPanel.java
+++ b/gerrit-gwtui/src/main/java/com/google/gerrit/client/patches/PatchScriptSettingsPanel.java
@@ -128,6 +128,10 @@
     }
   }
 
+  public CheckBox getSyntaxHighlightingCheckBox() {
+    return syntaxHighlighting;
+  }
+
   public CheckBox getReviewedCheckBox() {
     return reviewed;
   }