Clean up some warnings.

editor/tools/plugins/com.google.dart.tools.ui/plugin.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <?eclipse version="3.4"?>
 <plugin>
 
    <extension-point id="dartElementFilters" name="%elementFiltersName" schema="schema/dartElementFilters.exsd"/>
    <extension-point id="dartEditorTextHovers" name="%javaEditorTextHoversName" schema="schema/dartEditorTextHovers.exsd"/>
    <extension-point id="dartDocCompletionProcessor" name="%javadocCompletionProcessor" schema="schema/dartDocCompletionProcessor.exsd"/>
    <extension-point id="quickFixProcessors" name="%quickFixProcessorExtensionPoint" schema="schema/quickFixProcessors.exsd"/>
    <extension-point id="quickAssistProcessors" name="%quickAssistProcessorExtensionPoint" schema="schema/quickAssistProcessors.exsd"/>
    <extension-point id="foldingStructureProviders" name="%foldingStructureProvidersExtensionPoint" schema="schema/foldingStructureProviders.exsd"/>
@@ skipping 315 matching lines @@
     </extension>
    
    <extension point="org.eclipse.ui.perspectiveExtensions">
       <!-- shortcuts to Dart perspective -->
       <perspectiveExtension targetID="org.eclipse.jdt.ui.JavaPerspective">
          <perspectiveShortcut id="com.google.dart.tools.ui.DartPerspective"/>
       </perspectiveExtension>
       <perspectiveExtension targetID="org.eclipse.debug.ui.DebugPerspective">
          <perspectiveShortcut id="com.google.dart.tools.ui.DartPerspective"/>
       </perspectiveExtension>
-      <perspectiveExtension targetID="org.eclipse.wst.web.ui.webDevPerspective">
-         <perspectiveShortcut id="com.google.dart.tools.ui.DartPerspective"/>
-      </perspectiveExtension> 
       <perspectiveExtension targetID="org.eclipse.ui.resourcePerspective">
          <perspectiveShortcut id="com.google.dart.tools.ui.DartPerspective"/>
       </perspectiveExtension>
       
       <!-- shortcuts from Dart perspective -->
       <perspectiveExtension targetID="com.google.dart.tools.ui.DartPerspective">
          <perspectiveShortcut id="org.eclipse.jdt.ui.JavaPerspective"/>
       </perspectiveExtension>
       <perspectiveExtension targetID="com.google.dart.tools.ui.DartPerspective">
          <perspectiveShortcut id="org.eclipse.debug.ui.DebugPerspective"/>
       </perspectiveExtension>
       <perspectiveExtension targetID="com.google.dart.tools.ui.DartPerspective">
-         <perspectiveShortcut id="org.eclipse.wst.web.ui.webDevPerspective"/>
-      </perspectiveExtension>
-      <perspectiveExtension targetID="com.google.dart.tools.ui.DartPerspective">
          <perspectiveShortcut id="org.eclipse.ui.resourcePerspective"/>
       </perspectiveExtension>
        
       <!-- view shortcuts in Dart perspective -->    
       <perspectiveExtension targetID="com.google.dart.tools.ui.DartPerspective">
          <showInPart id="org.eclipse.ui.navigator.ProjectExplorer"/>
          <showInPart id="org.eclipse.team.ui.GenericHistoryView"/>
          <showInPart id="org.eclipse.ui.views.ResourceNavigator"/>
          <actionSet id="com.google.dart.tools.ui.DartActionSet"/>
       </perspectiveExtension>
@@ skipping 2087 matching lines @@
          </colorOverride>
          <colorOverride
             id="org.eclipse.wst.jsdt.ui.staticFinalFieldHighlighting"
             value="COLOR_LIST_FOREGROUND">
          </colorOverride>
          <colorOverride
             id="org.eclipse.wst.jsdt.ui.fieldHighlighting"
             value="COLOR_LIST_SELECTION">
          </colorOverride>
          <colorOverride
-            id="org.eclipse.wst.jsdt.ui.autoboxHighlighting"
-            value="COLOR_WIDGET_DARK_SHADOW">
-         </colorOverride>
-         <colorOverride
-            id="org.eclipse.wst.jsdt.ui.abstractMethodDeclarationNameHighlighting"
-            value="COLOR_LIST_FOREGROUND">
-         </colorOverride>
-         <colorOverride
             id="org.eclipse.wst.jsdt.ui.annotationElementReferenceHighlighting"
             value="COLOR_LIST_FOREGROUND">
          </colorOverride>
          <colorOverride
             id="org.eclipse.wst.jsdt.ui.staticMethodInvocationHighlighting"
             value="COLOR_LIST_FOREGROUND">
          </colorOverride>
          <colorOverride
             id="org.eclipse.wst.jsdt.ui.abstractMethodInvocationHighlighting"
             value="COLOR_LIST_FOREGROUND">
@@ skipping 47 matching lines @@
             value="COLOR_WIDGET_DARK_SHADOW">
          </colorOverride>
          <colorOverride
             id="org.eclipse.wst.jsdt.ui.typeParameterHighlighting"
             value="COLOR_WIDGET_DARK_SHADOW">
          </colorOverride>
          <colorOverride
             id="org.eclipse.wst.jsdt.ui.methodDeclarationNameHighlighting"
             value="COLOR_LIST_FOREGROUND">
          </colorOverride>
-         <colorOverride
-            id="org.eclipse.wst.jsdt.ui.staticMethodDeclarationHighlighting"
-            value="COLOR_LIST_FOREGROUND">
-         </colorOverride>
       </theme>
    </extension>
    
    <!-- Dart development keybindings -->
    <extension
          point="org.eclipse.ui.bindings">
       <scheme
             id="com.google.dart.tools.dartAcceleratorConfiguration"
             name="Dart Development">
       </scheme>
@@ skipping 789 matching lines @@
                        </adapt>
                      </iterate>     
                  </and>
                </with>
             </visibleWhen>
          </command>
       </menuContribution-->
    </extension>
 
 </plugin>