Reenable InstallApps attempt #2. This time with a fix to

chrome/common/extensions/extension_manifests_unittest.cc

Index: chrome/common/extensions/extension_manifests_unittest.cc
diff --git a/chrome/common/extensions/extension_manifests_unittest.cc b/chrome/common/extensions/extension_manifests_unittest.cc
index a92bdf537cbcb17e215b0417e29cda8a6407e828..f1e59c3379296295f25cb1fddfa2bb56e12bb81c 100644
--- a/chrome/common/extensions/extension_manifests_unittest.cc
+++ b/chrome/common/extensions/extension_manifests_unittest.cc
@@ -44,8 +44,7 @@ class ManifestTest : public testing::Test {
 
     scoped_ptr<Extension> extension(new Extension(path.DirName()));
     extension->set_location(location);
-    if (enable_apps_)
-      extension->set_apps_enabled(true);
+    extension->set_apps_enabled(enable_apps_);
 
     if (!extension->InitFromValue(*value, false, error))
       return NULL;