Move NewDownload out of AwContentsIoThreadClientImpl to AwContentsClientBridge

android_webview/native/aw_contents_client_bridge.h

Index: android_webview/native/aw_contents_client_bridge.h
diff --git a/android_webview/native/aw_contents_client_bridge.h b/android_webview/native/aw_contents_client_bridge.h
index 406138d01d17a1e208800b82e4d0c8936a8ceda2..6303be20fc05fc31ce3fa5a85f95b66d5a4a4554 100644
--- a/android_webview/native/aw_contents_client_bridge.h
+++ b/android_webview/native/aw_contents_client_bridge.h
@@ -61,6 +61,12 @@ class AwContentsClientBridge : public AwContentsClientBridgeBase {
                                 bool is_redirect,
                                 bool is_main_frame) override;
 
+  void NewDownload(const GURL& url,
+                   const std::string& user_agent,
+                   const std::string& content_disposition,
+                   const std::string& mime_type,
+                   int64_t content_length) override;
+
   // Methods called from Java.
   void ProceedSslError(JNIEnv* env,
                        const base::android::JavaRef<jobject>& obj,