Fix main intent metrics when zero tabs present.

chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java
index 74f81640571ff76789d7aa9b14004df8282e1eb2..2ede5be73ff8199df8b934d6e9a91c0cd643e97b 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java
@@ -839,7 +839,9 @@ public class ChromeTabbedActivity extends ChromeActivity implements OverviewMode
             // it will trigger the notification that tab restore is complete which is needed by
             // other parts of Chrome such as sync.
             boolean activeTabBeingRestored = !mIntentWithEffect;
+            mMainIntentMetrics.setIgnoreEvents(true);
             mTabModelSelectorImpl.restoreTabs(activeTabBeingRestored);
+            mMainIntentMetrics.setIgnoreEvents(false);
 
             // Only create an initial tab if no tabs were restored and no intent was handled.
             // Also, check whether the active tab was supposed to be restored and that the total
@@ -854,8 +856,9 @@ public class ChromeTabbedActivity extends ChromeActivity implements OverviewMode
                         new Runnable() {
                             @Override
                             public void run() {
-                                mMainIntentMetrics.ignorePendingAddTab();
+                                mMainIntentMetrics.setIgnoreEvents(true);
                                 createInitialTab();
+                                mMainIntentMetrics.setIgnoreEvents(false);
                             }
                         }, INITIAL_TAB_CREATION_TIMEOUT_MS);
             }