Prepare to get the multiprocess setting from WebViewDelegate.

android_webview/glue/java/src/com/android/webview/chromium/WebViewDelegateFactory.java

Index: android_webview/glue/java/src/com/android/webview/chromium/WebViewDelegateFactory.java
diff --git a/android_webview/glue/java/src/com/android/webview/chromium/WebViewDelegateFactory.java b/android_webview/glue/java/src/com/android/webview/chromium/WebViewDelegateFactory.java
index c2b42958ed57e707d572f8b6e0bcb95b8d528c1e..23ecf26a73dd0d7a5c5a77931878bff5e4b64e90 100644
--- a/android_webview/glue/java/src/com/android/webview/chromium/WebViewDelegateFactory.java
+++ b/android_webview/glue/java/src/com/android/webview/chromium/WebViewDelegateFactory.java
@@ -82,6 +82,9 @@ class WebViewDelegateFactory {
 
         /** @see android.webkit.WebViewDelegate#addWebViewAssetPath */
         void addWebViewAssetPath(Context context);
+
+        /** @see android.webkit.WebViewDelegate#isMultiProcessEnabled */
+        boolean isMultiProcessEnabled();
     }
 
     /**
@@ -110,7 +113,7 @@ class WebViewDelegateFactory {
      * A {@link WebViewDelegate com.android.webview.chromium.WebViewDelegate} that proxies requests
      * to a {@link android.webkit.WebViewDelegate android.webkit.WebViewDelegate}.
      */
-    private static class ProxyDelegate implements WebViewDelegate {
+    static class ProxyDelegate implements WebViewDelegate {
         android.webkit.WebViewDelegate mDelegate;
 
         ProxyDelegate(android.webkit.WebViewDelegate delegate) {
@@ -198,6 +201,11 @@ class WebViewDelegateFactory {
                 }
             });
         }
+
+        @Override
+        public boolean isMultiProcessEnabled() {
+            throw new UnsupportedOperationException();
+        }
     }
 
     /**
@@ -383,5 +391,10 @@ class WebViewDelegateFactory {
                 throw new RuntimeException("Invalid reflection", e);
             }
         }
+
+        @Override
+        public boolean isMultiProcessEnabled() {
+            throw new UnsupportedOperationException();
+        }
     }
 }