Rollback to 1024m max heap.

editor/tools/plugins/com.google.dart.tools.deploy/dart_feature.product

 <?xml version="1.0" encoding="UTF-8"?>
 <?pde version="3.5"?>
 
 <product name="Dart Editor" uid="com.google.dart.tools.product.deploy" id="com.google.dart.tools.deploy.product" application="com.google.dart.tools.deploy.application" version="1.0.0.qualifier" useFeatures="true" includeLaunchers="true">
 
    <aboutInfo>
       <image path="/com.google.dart.tools.deploy/icons/dart_116_116.gif"/>
       <text>
          An awesome editor for Dart programming.
       </text>
    </aboutInfo>
 
    <configIni use="default">
    </configIni>
 
    <launcherArgs>
       <programArgsLin>-consoleLog -data @user.home/.dartEditor</programArgsLin>
       <programArgsMac>-consoleLog -data &quot;@user.home/Library/Application Support/DartEditor&quot;</programArgsMac>
       <programArgsWin>-data @user.home\DartEditor</programArgsWin>
-      <vmArgs>-Dosgi.requiredJavaVersion=1.6 -Dfile.encoding=UTF-8 -XX:MaxPermSize=128m -Xms40m -Xmx1850m</vmArgs>
+      <vmArgs>-Dosgi.requiredJavaVersion=1.6 -Dfile.encoding=UTF-8 -XX:MaxPermSize=128m -Xms40m -Xmx1024m</vmArgs>
       <vmArgsMac>-XstartOnFirstThread -Dorg.eclipse.swt.internal.carbon.smallFonts -Declipse.vm=/System/Library/Frameworks/JavaVM.framework -Xdock:icon=../Resources/Eclipse.icns</vmArgsMac>
    </launcherArgs>
 
    <windowImages i16="/com.google.dart.tools.deploy/icons/dart_16x16x32.png" i32="/com.google.dart.tools.deploy/icons/dart_32x32x32.png" i48="/com.google.dart.tools.deploy/icons/dart_48x48x32.png" i64="/com.google.dart.tools.deploy/icons/dart_64x64x32.png" i128="/com.google.dart.tools.deploy/icons/dart_128x128x32.png"/>
 
    <splash
       location="com.google.dart.tools.deploy"
       startupProgressRect="100,350,400,15"
       startupMessageRect="100,330,400,15"
       startupForegroundColor="B3B3B3" />
@@ skipping 24 matching lines @@
       <plugin id="org.eclipse.core.runtime" autoStart="true" startLevel="0" />
       <plugin id="org.eclipse.equinox.common" autoStart="true" startLevel="2" />
       <plugin id="org.eclipse.equinox.ds" autoStart="true" startLevel="1" />
       <plugin id="org.eclipse.equinox.simpleconfigurator" autoStart="true" startLevel="1" />
       <plugin id="org.eclipse.osgi" autoStart="true" startLevel="-1" />
       <plugin id="org.eclipse.update.configurator" autoStart="true" startLevel="3" />
       <property name="org.eclipse.update.reconcile" value="false" />
    </configurations>
 
 </product>