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 91cc66eddf90ee53ac155eb8429d30bb1edf095e..332cda5e8d6b6dc446768d5164cf8739b0334d4f 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java
@@ -878,7 +878,9 @@ 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
@@ -893,8 +895,9 @@ 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);
             }