add mole collapse/expand events. convert mappy to use this.

chrome/test/data/extensions/api_test/toolstrip/test.html

Index: chrome/test/data/extensions/api_test/toolstrip/test.html
diff --git a/chrome/test/data/extensions/api_test/toolstrip/test.html b/chrome/test/data/extensions/api_test/toolstrip/test.html
new file mode 100755
index 0000000000000000000000000000000000000000..237612dfba7103f9dfe5d5e11cc203742cce5e3d
--- /dev/null
+++ b/chrome/test/data/extensions/api_test/toolstrip/test.html
@@ -0,0 +1,14 @@
+<script>
+chrome.test.runTests([
+  function expand() {
+    chrome.test.listenOnce(chrome.toolstrip.onExpanded, function(){});
+    chrome.toolstrip.expand({height:200}, 
+                            chrome.test.callbackPass(function(){}));
+  },
+  
+  function collapse() {
+    chrome.test.listenOnce(chrome.toolstrip.onCollapsed, function(){});
+    chrome.toolstrip.collapse({}, chrome.test.callbackPass(function(){}));
+  }
+]);
+</script>