[Smart Lock] Auto sign-in snackbar UI.

chrome/android/java/src/org/chromium/chrome/browser/tab/ChromeTab.java

Index: chrome/android/java/src/org/chromium/chrome/browser/tab/ChromeTab.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/tab/ChromeTab.java b/chrome/android/java/src/org/chromium/chrome/browser/tab/ChromeTab.java
index 8b0fe2d895a960dc23b3e97578c5350a6c6991d7..09fe942729befa079731ae132950e51baba0e352 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/tab/ChromeTab.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/tab/ChromeTab.java
@@ -57,6 +57,7 @@ import org.chromium.chrome.browser.policy.PolicyAuditor.AuditEvent;
 import org.chromium.chrome.browser.preferences.PrefServiceBridge;
 import org.chromium.chrome.browser.rlz.RevenueStats;
 import org.chromium.chrome.browser.search_engines.TemplateUrlService;
+import org.chromium.chrome.browser.snackbar.SnackbarManager;
 import org.chromium.chrome.browser.tab.TabUma.TabCreationState;
 import org.chromium.chrome.browser.tabmodel.TabCreatorManager.TabCreator;
 import org.chromium.chrome.browser.tabmodel.TabModel;
@@ -1366,4 +1367,9 @@ public class ChromeTab extends Tab {
     public OverrideUrlLoadingResult getLastOverrideUrlLoadingResultForTests() {
         return mLastOverrideUrlLoadingResult;
     }
+
+    @Override
+    public SnackbarManager getSnackbarManager() {
+        return mActivity.getSnackbarManager();
+    }
 }