[devtools] Support different encodings for Page.CaptureScreenshot.

chrome/browser/chromeos/policy/remote_commands/device_command_screenshot_job.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_POLICY_REMOTE_COMMANDS_DEVICE_COMMAND_SCREENSHOT_JOB_H_
 #define CHROME_BROWSER_CHROMEOS_POLICY_REMOTE_COMMANDS_DEVICE_COMMAND_SCREENSHOT_JOB_H_
 
 #include <stddef.h>
 
 #include <list>
@@ skipping 61 matching lines @@
     // have been certain types of user input that may result in leaking private
     // information.
     virtual bool IsScreenshotAllowed() = 0;
 
     // Acquires a snapshot of |source_rect| in |window| and invokes |callback|
     // with the PNG data. The passed-in callback will not be invoked after the
     // delegate has been destroyed. See e.g. ScreenshotDelegate.
     virtual void TakeSnapshot(
         gfx::NativeWindow window,
         const gfx::Rect& source_rect,
-        const ui::GrabWindowSnapshotAsyncPNGCallback& callback) = 0;
+        const ui::GrabWindowSnapshotAsyncEncodedCallback& callback) = 0;
 
     // Creates a new fully configured instance of an UploadJob. This method
     // may be called any number of times.
     virtual std::unique_ptr<UploadJob> CreateUploadJob(
         const GURL&,
         UploadJob::Delegate*) = 0;
   };
 
   explicit DeviceCommandScreenshotJob(
       std::unique_ptr<Delegate> screenshot_delegate);
@@ skipping 44 matching lines @@
   std::unique_ptr<UploadJob> upload_job_;
 
   base::WeakPtrFactory<DeviceCommandScreenshotJob> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DeviceCommandScreenshotJob);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_CHROMEOS_POLICY_REMOTE_COMMANDS_DEVICE_COMMAND_SCREENSHOT_JOB_H_