[devtools] Support different encodings for Page.CaptureScreenshot.

chrome/browser/chromeos/policy/remote_commands/device_command_screenshot_job.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/device_command_screenshot_job.h"
 
 #include <fstream>
 #include <utility>
 
 #include "ash/shell.h"
@@ skipping 40 matching lines @@
 const char* const kFileTypeHeaderName = "File-Type";
 
 // String constant signalling that the data segment contains screenshots.
 const char* const kFileTypeScreenshotFile = "screenshot_file";
 
 // String constant identifying the upload url field in the command payload.
 const char* const kUploadUrlFieldName = "fileUploadUrl";
 
 // A helper function which invokes |store_screenshot_callback| on |task_runner|.
 void RunStoreScreenshotOnTaskRunner(
-    const ui::GrabWindowSnapshotAsyncPNGCallback& store_screenshot_callback,
+    const ui::GrabWindowSnapshotAsyncEncodedCallback& store_screenshot_callback,
     scoped_refptr<base::TaskRunner> task_runner,
     scoped_refptr<base::RefCountedBytes> png_data) {
   task_runner->PostTask(FROM_HERE,
                         base::Bind(store_screenshot_callback, png_data));
 }
 
 }  // namespace
 
 class DeviceCommandScreenshotJob::Payload
     : public RemoteCommandJob::ResultPayload {
@@ skipping 169 matching lines @@
                               weak_ptr_factory_.GetWeakPtr(), screen),
                    base::ThreadTaskRunnerHandle::Get()));
   }
 }
 
 void DeviceCommandScreenshotJob::TerminateImpl() {
   weak_ptr_factory_.InvalidateWeakPtrs();
 }
 
 }  // namespace policy