Remove Overflow menu and snackbar when infobar is closing.

chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBar.java

Index: chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBar.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBar.java b/chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBar.java
index 3ad465956a1447102e13a39d83e0babc60a9f787..db41440b95c513faa54d48ca7229e95d34484993 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBar.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBar.java
@@ -161,6 +161,7 @@ public abstract class InfoBar implements InfoBarView {
             mIsDismissed = true;
             if (!mContainer.hasBeenDestroyed()) {
                 // If the container was destroyed, it's already been emptied of all its infobars.
+                onStartedRemoving();

[mdjones, 2017/05/11 17:08:24]

I'd prefer this be named "onStartedHiding" despite the line below this since the
infobar nearly always animates.

[Marti Wong, 2017/05/12 00:04:50]

Done.

                 mContainer.removeInfoBar(this);
             }
             return true;
@@ -168,6 +169,17 @@ public abstract class InfoBar implements InfoBarView {
         return false;
     }
 
+    /**
+     * Called when infobar is being removed.  Give the chance to clean up any child UI that may

[mdjones, 2017/05/11 17:08:24]

"Called just before the Java infobar has begun hiding."

[Marti Wong, 2017/05/12 00:04:50]

Done.

+     * remain open.
+     */
+    protected void onStartedRemoving() {}
+
+    /**
+     * Performs some action related to either the primary or secondary button being pressed.
+     * @param isPrimaryButton True if the primary button was clicked, false otherwise.
+     */

[mdjones, 2017/05/11 17:08:24]

Remove this floating javadoc.

[Marti Wong, 2017/05/12 00:04:50]

Done. sorry for the carelessness.

+
     long getNativeInfoBarPtr() {
         return mNativeInfoBarPtr;
     }