Moving context menu from treechildren context to tree contextmenu for right panels of dom inspector. This makes them

keyboard accessible.
r=caillon sr=neil

extensions/inspector/resources/content/viewers/domNode/domNode.xul

@@ -65,8 +65,12 @@
         </rows>
       </grid>
     
-      <tree id="olAttr" class="plain" flex="1" enableColumnDrag="true"
-                onselect="viewer.pane.panelset.updateAllCommands()">
+      <tree id="olAttr"
+            class="plain"
+            flex="1"
+            enableColumnDrag="true"
+            contextmenu="ppAttrContext"
+            onselect="viewer.pane.panelset.updateAllCommands()">
         <treecols>
           <!-- These labels don't need to be localized since they are defined by DOM APIs -->
           <treecol id="colNodeName" label="nodeName" persist="width,hidden,ordinal" flex="1"/>
@@ -75,7 +79,7 @@
         </treecols>
         <treechildren id="olAttrBody"
                       alternatingbackground="true"
-                      context="ppAttrContext"/>
+        />
       </tree>
 
     </vbox>

extensions/inspector/resources/content/viewers/styleRules/styleRules.xul

@@ -60,8 +60,11 @@
     <grippy/>
   </splitter>
 
-  <tree id="olStyleProps" class="plain" flex="1" persist="height"
-            context="ppStylePropsContext">
+  <tree id="olStyleProps"
+        class="plain"
+        flex="1"
+        persist="height"
+        contextmenu="ppStylePropsContext">
     <treecols>
       <treecol id="olcPropPriority" label="&styleRulePropPriority.label;" class="treecol-image"/>
       <splitter class="tree-splitter"/>

extensions/inspector/resources/content/viewers/xblBindings/xblBindings.xul

@@ -37,14 +37,17 @@
     </multipanel>
 
     <multipanel id="bxMethods" label="&bindingMethods.label;" open="true" persist="open">
-      <tree id="olMethods" class="tree-list plain" flex="1"
-                onselect="viewer.onMethodSelected()">
+      <tree id="olMethods"
+            class="tree-list plain"
+            flex="1"
+            contextmenu="ppDOMContext"
+            onselect="viewer.onMethodSelected()">
         <treecols>
           <treecol id="olcMethodName" flex="1"/>
         </treecols>
         <treechildren id="olbMethods"
                       alternatingbackground="true"
-                      context="ppDOMContext"/>
+        />
       </tree>
     </multipanel>
   
@@ -54,40 +57,49 @@
           <radio id="raPropGetter" label="&bindingGetter.label;" selected="true" oncommand="viewer.onPropSelected()"/>
           <radio id="raPropSetter" label="&bindingSetter.label;" oncommand="viewer.onPropSelected()"/>
         </radiogroup>
-        <tree id="olProps" class="tree-list plain" flex="1"
-                  onselect="viewer.onPropSelected()">
+        <tree id="olProps"
+              class="tree-list plain"
+              flex="1"
+              contextmenu="ppDOMContext"
+              onselect="viewer.onPropSelected()">
           <treecols>
             <treecol id="olcPropName" label="&bindingProperty.label;" flex="1"/>
           </treecols>
           <treechildren id="olbProps"
                         alternatingbackground="true"
-                        context="ppDOMContext"/>
+          />
         </tree>
       </vbox>
     </multipanel>
 
     <multipanel id="bxHandlers" label="&bindingHandlers.label;" persist="open">
-      <tree id="olHandlers" class="tree-list plain" flex="1"
-                onselect="viewer.onHandlerSelected()">
+      <tree id="olHandlers"
+            class="tree-list plain"
+            flex="1"
+            contextmenu="ppDOMContext"
+            onselect="viewer.onHandlerSelected()">
         <treecols>
           <treecol id="olcHandlerEvent" flex="1"/>
           <treecol id="olcHandlerPhase"/>
         </treecols>
         <treechildren id="olbHandlers"
                       alternatingbackground="true"
-                      context="ppDOMContext"/>
+        />
       </tree>
     </multipanel>
   
     <multipanel id="bxResources" label="&bindingResources.label;" persist="open">
-      <tree id="olResources" class="tree-list plain" flex="1">
+      <tree id="olResources"
+            contextmenu="ppDOMContext"
+            class="tree-list plain"
+            flex="1">
         <treecols>
           <treecol id="olcResourceType" flex="1"/>
           <treecol id="olcResourceSrc" flex="2"/>
         </treecols>
         <treechildren id="olbResources"
                       alternatingbackground="true"
-                      context="ppDOMContext"/>
+        />
       </tree>
     </multipanel>