Do not call WebTextView.requestFocus if WebView is not focused.

Bug:3118097
Bug:3039912

Change-Id: I4c43f394c9dc3c9db58fb744d588dfb36f3221f4
diff --git a/core/java/android/webkit/WebView.java b/core/java/android/webkit/WebView.java
index be1af65..13b9d98 100644
--- a/core/java/android/webkit/WebView.java
+++ b/core/java/android/webkit/WebView.java
@@ -3966,7 +3966,9 @@
                 imm.restartInput(mWebTextView);
             }
         }
-        mWebTextView.requestFocus();
+        if (isFocused()) {
+            mWebTextView.requestFocus();
+        }
     }
 
     /**