Check for xulrunner-sdk project after applying patch tree

Change-Id: I2f1ded431a11e63c302672f9dbd6acaf7d4353c0

vendorsetup.sh

@@ -235,11 +235,6 @@ __patch_tree()
 export JAVA_HOME=$(gettop)/device/qcom/b2g_common/faketools/jdk
 export ANDROID_JAVA_HOME=${JAVA_HOME}
 
-# Use a local Xulrunner SDK copy instead of downloading
-if [[ -d gaia/xulrunner-sdk/.git ]]; then
-   export USE_LOCAL_XULRUNNER_SDK=1
-fi
-
 flash()
 {
    ( cd $(gettop)/device/qcom/b2g_common && ./flash.sh $@ )
@@ -264,3 +259,9 @@ else
    *) [[ -z "$PS1" ]] && __patch_tree || echo Error: Unknown command: $1
    esac
 fi
+
+# Use a local Xulrunner SDK copy instead of downloading
+if [[ -d gaia/xulrunner-sdk/.git ]]; then
+   export USE_LOCAL_XULRUNNER_SDK=1
+fi
+