Refactor httm methods to return response instead of response code

src/com/owncloud/android/lib/common/OwnCloudClient.java

@@ -59,6 +59,7 @@ import java.util.Arrays;
 
 import okhttp3.OkHttpClient;
 import okhttp3.Protocol;
+import okhttp3.Response;
 
 public class OwnCloudClient extends HttpClient {
 
@@ -309,21 +310,21 @@ public class OwnCloudClient extends HttpClient {
         return status;
     }
 
-    public int executeHttpMethod (HttpBaseMethod method) throws Exception {
+    public Response executeHttpMethod (HttpBaseMethod method) throws Exception {
 
         boolean repeatWithFreshCredentials;
         int repeatCounter = 0;
-        int status;
+        Response response;
 
         do {
-            status = method.execute();
-            repeatWithFreshCredentials = checkUnauthorizedAccess(status, repeatCounter);
+            response = method.execute();
+            repeatWithFreshCredentials = checkUnauthorizedAccess(response.code(), repeatCounter);
             if (repeatWithFreshCredentials) {
                 repeatCounter++;
             }
         } while (repeatWithFreshCredentials);
 
-        return status;
+        return response;
     }
 
     private void checkFirstRedirection(HttpMethod method) {

src/com/owncloud/android/lib/common/http/HttpBaseMethod.java

@@ -4,15 +4,10 @@ import okhttp3.Request;
 import okhttp3.Response;
 
 public abstract class HttpBaseMethod {
-    public abstract int execute() throws Exception;
+    public abstract Response execute() throws Exception;
     protected Request mRequest;
-    protected Response mResponse;
 
     public Request getRequest() {
         return mRequest;
     }
-
-    public Response getResponse() {
-        return mResponse;
-    }
 }

src/com/owncloud/android/lib/common/http/nonwebdav/GetMethod.java

@@ -4,6 +4,7 @@ import java.io.IOException;
 
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
+import okhttp3.Response;
 
 public class GetMethod extends HttpMethod {
 
@@ -12,13 +13,12 @@ public class GetMethod extends HttpMethod {
     }
 
     @Override
-    public int execute() throws IOException {
+    public Response execute() throws IOException {
         mRequest = mBaseRequest
                 .newBuilder()
                 .get()
                 .build();
 
-        mResponse = mOkHttpClient.newCall(mRequest).execute();
-        return mResponse.code();
+        return mOkHttpClient.newCall(mRequest).execute();
     }
 }

src/com/owncloud/android/lib/common/http/webdav/PropfindMethod.java

@@ -10,6 +10,7 @@ import at.bitfire.dav4android.exception.HttpException;
 import at.bitfire.dav4android.exception.UnauthorizedException;
 import okhttp3.HttpUrl;
 import okhttp3.OkHttpClient;
+import okhttp3.Response;
 
 public class PropfindMethod extends DavMethod {
 
@@ -22,8 +23,7 @@ public class PropfindMethod extends DavMethod {
     };
 
     @Override
-    public int execute() throws IOException, HttpException, DavException {
-
+    public Response execute() throws IOException, HttpException, DavException {
         try {
             mDavResource.propfind(mDepth, PropertyUtils.INSTANCE.getAllPropSet());
             mMembers = mDavResource.getMembers();
@@ -32,9 +32,7 @@ public class PropfindMethod extends DavMethod {
         }
 
         mRequest = mDavResource.getRequest();
-        mResponse = mDavResource.getResponse();
-
-        return mResponse.code();
+        return mDavResource.getResponse();
     }
 
     public int getDepth() {