Adding length metrics for individual samples.

Review by: scottb


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@3043 8db76d5a-ed1c-0410-87a9-c151d255dfc7

samples/common.ant.xml

diff --git a/samples/common.ant.xml b/samples/common.ant.xml
index 76bca28..119dbf6 100755
--- a/samples/common.ant.xml
+++ b/samples/common.ant.xml
@@ -51,6 +51,10 @@
 						<arg value="com.google.gwt.sample.${sample.package}.${sample.module}" />
 					</java>
 				</gwt.timer>
+				<length property="sample.size">
+					<fileset dir="${sample.build}/www/com.google.gwt.sample.${sample.package}.${sample.module}"/>
+				</length>
+				<echo message="output size for ${sample.main} is ${sample.size} bytes"/>
 			</sequential>
 		</outofdate>
 	</target>