Change from_surface default value to true

content/browser/devtools/protocol/page_handler.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/devtools/protocol/page_handler.h"
 
 #include <algorithm>
 #include <memory>
 #include <string>
 #include <utility>
@@ skipping 278 matching lines @@
     return;
   }
 
   std::string screenshot_format = format.fromMaybe(kPng);
   int screenshot_quality = quality.fromMaybe(kDefaultScreenshotQuality);
 
   host_->GetRenderWidgetHost()->GetSnapshotFromBrowser(
       base::Bind(&PageHandler::ScreenshotCaptured, weak_factory_.GetWeakPtr(),
                  base::Passed(std::move(callback)), screenshot_format,
                  screenshot_quality),
-      from_surface.fromMaybe(false));
+      from_surface.fromMaybe(true));
 }
 
 void PageHandler::PrintToPDF(Maybe<bool> landscape,
                              Maybe<bool> display_header_footer,
                              Maybe<bool> print_background,
                              Maybe<double> scale,
                              Maybe<double> paper_width,
                              Maybe<double> paper_height,
                              Maybe<double> margin_top,
                              Maybe<double> margin_bottom,
@@ skipping 276 matching lines @@
 Response PageHandler::StopLoading() {
   WebContentsImpl* web_contents = GetWebContents();
   if (!web_contents)
     return Response::InternalError();
   web_contents->Stop();
   return Response::OK();
 }
 
 }  // namespace protocol
 }  // namespace content