Image Capture PPAPI: remove unused APIs

ppapi/thunk/ppb_image_capture_api.h

 // 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.
 
 #ifndef PPAPI_THUNK_PPB_IMAGE_CAPTURE_API_H_
 #define PPAPI_THUNK_PPB_IMAGE_CAPTURE_API_H_
 
 #include <string>
 
 #include "ppapi/c/private/ppb_image_capture_private.h"
 
 namespace ppapi {
 
 class TrackedCallback;
 
 namespace thunk {
 
 class PPB_ImageCapture_API {
  public:
   virtual ~PPB_ImageCapture_API() {}
   virtual int32_t Open(PP_Var camera_source_id,
                        scoped_refptr<TrackedCallback> callback) = 0;
   virtual void Close() = 0;
-  virtual int32_t SetConfig(PP_Resource config,
-                            scoped_refptr<TrackedCallback> callback) = 0;
-  virtual int32_t GetConfig(PP_Resource* config,
-                            scoped_refptr<TrackedCallback> callback) = 0;
   virtual int32_t GetCameraCapabilities(
       PP_Resource* capabilities,
       scoped_refptr<TrackedCallback> callback) = 0;
-  virtual int32_t CaptureStillImage(
-      PPB_ImageCapture_Private_ShutterCallback shutter_callback,
-      PPB_ImageCapture_Private_PreviewCallback preview_callback,
-      PPB_ImageCapture_Private_JpegCallback jpeg_callback,
-      int64_t* sequence_id) = 0;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_PPB_IMAGE_CAPTURE_API_H_