Set WebView as important for Content Capture.

Test: echo 'In TreeHugger we trust!'
Bug: 111276913

Change-Id: I28c4691c9b4adb8163eaff15f7e498f637a162ad

core/java/android/webkit/WebView.java

@@ -410,6 +410,9 @@ public class WebView extends AbsoluteLayout
         if (getImportantForAutofill() == IMPORTANT_FOR_AUTOFILL_AUTO) {
             setImportantForAutofill(IMPORTANT_FOR_AUTOFILL_YES);
         }
+        if (getImportantForContentCapture() == IMPORTANT_FOR_CONTENT_CAPTURE_AUTO) {
+            setImportantForContentCapture(IMPORTANT_FOR_CONTENT_CAPTURE_YES);
+        }
 
         if (context == null) {
             throw new IllegalArgumentException("Invalid context argument");