[Home] Add BottomSheetObserverTest#testSheetContentChanged

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

Index: chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
index 480e2e6a4e6e82972c9a29903a56e36b9f213af8..bd0a01c1e5fc932fd3a8c6de89661721b8a01534 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
@@ -643,11 +643,21 @@ public abstract class ChromeActivity extends AsyncInitializationActivity
      * Get the Chrome Home bottom sheet if it exists.
      * @return The bottom sheet or null.
      */
+    @Nullable
     public BottomSheet getBottomSheet() {
         return mBottomSheet;
     }
 
     /**
+     * Get the Chrome Home bottom sheet content controller if it exists.
+     * @return The {@link BottomSheetContentController} or null.
+     */
+    @Nullable
+    public BottomSheetContentController getBottomSheetContentController() {
+        return mBottomSheetContentController;
+    }
+
+    /**
      * @return The View used to obscure content and bring focus to a foreground view.
      */
     public FadingBackgroundView getFadingBackgroundView() {