[devtools] Support different encodings for Page.CaptureScreenshot.

chrome/browser/chromeos/policy/remote_commands/screenshot_delegate.cc

 // Copyright 2015 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 "chrome/browser/chromeos/policy/remote_commands/screenshot_delegate.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/syslog_logging.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 24 matching lines @@
   // shutdown (and unit tests) - don't allow screenshots unless we have a
   // StatusUploader that can confirm that screenshots are allowed.
   return manager && manager->GetStatusUploader() &&
          manager->GetStatusUploader()->IsSessionDataUploadAllowed();
 }
 
 void ScreenshotDelegate::TakeSnapshot(
     gfx::NativeWindow window,
     const gfx::Rect& source_rect,
     const ui::GrabWindowSnapshotAsyncPNGCallback& callback) {
-  ui::GrabWindowSnapshotAsync(
+  ui::GrabWindowSnapshotAsyncPNG(
       window, source_rect, blocking_task_runner_,
       base::Bind(&ScreenshotDelegate::StoreScreenshot,
                  weak_ptr_factory_.GetWeakPtr(), callback));
 }
 
 std::unique_ptr<UploadJob> ScreenshotDelegate::CreateUploadJob(
     const GURL& upload_url,
     UploadJob::Delegate* delegate) {
   chromeos::DeviceOAuth2TokenService* device_oauth2_token_service =
       chromeos::DeviceOAuth2TokenServiceFactory::Get();
 
   scoped_refptr<net::URLRequestContextGetter> system_request_context =
       g_browser_process->system_request_context();
   std::string robot_account_id =
       device_oauth2_token_service->GetRobotAccountId();
 
   SYSLOG(INFO) << "Creating upload job for screenshot";
   return std::unique_ptr<UploadJob>(new UploadJobImpl(
       upload_url, robot_account_id, device_oauth2_token_service,
       system_request_context, delegate,
       base::WrapUnique(new UploadJobImpl::RandomMimeBoundaryGenerator),
       base::ThreadTaskRunnerHandle::Get()));
 }
 
 void ScreenshotDelegate::StoreScreenshot(
     const ui::GrabWindowSnapshotAsyncPNGCallback& callback,
-    scoped_refptr<base::RefCountedBytes> png_data) {
+    scoped_refptr<base::RefCountedMemory> png_data) {
   callback.Run(png_data);
 }
 
 }  // namespace policy