Updating the support library to user SDK version integer.

1. Now that we have defined the SDK verion to 17 the MR1 specific
   implementation of ViewCompat should be chosen based on the
   SDK version number instead of the code name.

bug:7170582

Change-Id: I7f9c64b3765a96e3bf5d45465d93b60bc66f6992
diff --git a/v4/java/android/support/v4/view/ViewCompat.java b/v4/java/android/support/v4/view/ViewCompat.java
index dfc6ad6..a3a3461 100644
--- a/v4/java/android/support/v4/view/ViewCompat.java
+++ b/v4/java/android/support/v4/view/ViewCompat.java
@@ -321,7 +321,7 @@
     static final ViewCompatImpl IMPL;
     static {
         final int version = android.os.Build.VERSION.SDK_INT;
-        if ("JellyBeanMR1".equals(android.os.Build.VERSION.CODENAME)) {
+        if (version >= 17) {
             IMPL = new JbMr1ViewCompatImpl();
         } else if (version >= 16) {
             IMPL = new JBViewCompatImpl();