[Home] Add a bottom navigation bar for the BottomSheet

base/android/proguard/chromium_apk.flags

Index: base/android/proguard/chromium_apk.flags
diff --git a/base/android/proguard/chromium_apk.flags b/base/android/proguard/chromium_apk.flags
index b5ffb7f3013c01b5c9c5acd203350c867e08c4c5..0035ebe19ff3c7aa7d392afe44072e53375c67c9 100644
--- a/base/android/proguard/chromium_apk.flags
+++ b/base/android/proguard/chromium_apk.flags
@@ -57,3 +57,10 @@
 # Don't warn about those in case this app is linking against an older
 # platform version.  We know about them, and they are safe.
 -dontwarn android.support.**
+
+# This class member is referenced in BottomSheetBottomNav as a temporary
+# measure until the support library contains a solution for disabling shifting
+# mode. TODO(twellington): remove once support library has a fix and is rolled.
+-keepclassmembers class android.support.design.internal.BottomNavigationMenuView {
+    boolean mShiftingMode;
+}