Add content insets to Toolbar

Content insets allow a Toolbar to define horizontal gridlines for the
start/end or left/right edges of major content (not counting the
navigation button or menu). This allows apps to align their layout
content above or below a Toolbar with the title and other contents of
the bar by using app-defined measurements.

Change-Id: Ibd7e0810bf81070eb5f59a42ad3257f35bc0156a
diff --git a/core/java/com/android/internal/app/WindowDecorActionBar.java b/core/java/com/android/internal/app/WindowDecorActionBar.java
index 66548f0..79a8f44 100644
--- a/core/java/com/android/internal/app/WindowDecorActionBar.java
+++ b/core/java/com/android/internal/app/WindowDecorActionBar.java
@@ -268,7 +268,7 @@
             if (getNavigationMode() == NAVIGATION_MODE_TABS) {
                 tabScroller.setVisibility(View.VISIBLE);
                 if (mOverlayLayout != null) {
-                    mOverlayLayout.requestFitSystemWindows();
+                    mOverlayLayout.requestApplyInsets();
                 }
             } else {
                 tabScroller.setVisibility(View.GONE);