Revert of [Android] Support unfocusable container views.

content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java b/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
index 9dd9246c11485cd7c969f81516fdcf2c6082231f..12e658bee619c6abd9f161af5d9551f39a7a8ac4 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
@@ -2364,10 +2364,7 @@
      * @see View#hasFocus()
      */
     @CalledByNative
-    private boolean hasFocus() {
-        // If the container view is not focusable, we consider it always focused from
-        // Chromium's point of view.
-        if (!mContainerView.isFocusable()) return true;
+    public boolean hasFocus() {
         return mContainerView.hasFocus();
     }