Image Capture PPAPI: remove unused APIs

ppapi/cpp/private/image_capture_private.h

Index: ppapi/cpp/private/image_capture_private.h
diff --git a/ppapi/cpp/private/image_capture_private.h b/ppapi/cpp/private/image_capture_private.h
index ab4afbbdcd900466d07e2470d221700ffa0dc474..eede24a03238c21390c67f37fa6edce47659e96f 100644
--- a/ppapi/cpp/private/image_capture_private.h
+++ b/ppapi/cpp/private/image_capture_private.h
@@ -9,7 +9,6 @@
 #include "ppapi/c/private/ppb_image_capture_private.h"
 #include "ppapi/cpp/completion_callback.h"
 #include "ppapi/cpp/private/camera_capabilities_private.h"
-#include "ppapi/cpp/private/image_capture_config_private.h"
 #include "ppapi/cpp/resource.h"
 #include "ppapi/cpp/var.h"
 
@@ -18,16 +17,12 @@
 /// acquiring a single still image from a camera source.
 namespace pp {
 
-/// To capture a still image with this class, use the following steps.
-/// 1. Create an ImageCapture_Private object by the constructor.
-/// 2. Call GetCameraCapabilities to get the supported preview sizes.
-/// 3. For optimal performance, set one of the supported preview size as the
-///    constraints of getUserMedia. Use the created MediaStreamVideoTrack for
-///    camera previews.
-/// 4. Set the same preview size and other settings by SetConfig.
-/// 5. Call CaptureStillImage to capture a still image. Play the shutter sound
-///    in the shutter callback. The image from the preview callback can be used
-///    for display. JPEG image will be returned to the JPEG callback.
+/// To query camera capabilities:
+/// 1. Get a PPB_ImageCapture_Private object by Create().
+/// 2. Open() camera device with track id of MediaStream video track.
+/// 3. Call GetCameraCapabilities() to get a
+///    <code>PPB_CameraCapabilities_Private</code> object, which can be used to
+///    query camera capabilities.
 class ImageCapture_Private {
  public:
   /// Default constructor for creating an is_null()
@@ -49,7 +44,6 @@ class ImageCapture_Private {
   /// callbacks of ImageCapture_Private.
   ImageCapture_Private(const InstanceHandle& instance,
                        const Var& camera_source_id,
-                       PPB_ImageCapture_Private_ErrorCallback error_callback,
                        void* user_data);
 
   /// Constructs a <code>ImageCapture_Private</code> from a <code>
@@ -81,29 +75,6 @@ class ImageCapture_Private {
   /// @return An int32_t containing a result code from <code>pp_errors.h</code>.
   int32_t Close(const CompletionCallback& callback);
 
-  /// Sets the configuration of the image capture.
-  /// If <code>SetConfig()</code> is not called, default settings will be used.
-  ///
-  /// @param[in] config A <code>ImageCaptureConfig_Private</code> object.
-  /// @param[in] callback <code>CompletionCallback</code> to be called upon
-  /// completion of <code>SetConfig()</code>.
-  ///
-  /// @return An int32_t containing a result code from <code>pp_errors.h</code>.
-  /// Returns <code>PP_ERROR_INPROGRESS</code> if there is a pending call of
-  /// <code>SetConfig()</code> or <code>CaptureStillImage()</code>.
-  /// If an error is returned, the configuration will not be changed.
-  int32_t SetConfig(const ImageCaptureConfig_Private& config,
-                    const CompletionCallback& callback);
-
-  /// Gets the configuration of the image capture.
-  ///
-  /// @param[in] callback A <code>CompletionCallbackWithOutput</code>
-  /// to be called upon completion.
-  ///
-  /// @return An int32_t containing a result code from <code>pp_errors.h</code>.
-  int32_t GetConfig(
-      const CompletionCallbackWithOutput<ImageCaptureConfig_Private>& callback);
-
   /// Gets the camera capabilities.
   ///
   /// The camera capabilities do not change for a given camera source.
@@ -115,55 +86,6 @@ class ImageCapture_Private {
   int32_t GetCameraCapabilities(
       const CompletionCallbackWithOutput<CameraCapabilities_Private>& callback);
 
-  /// Captures a still JPEG image from the camera.
-  ///
-  /// Triggers an asynchronous image capture. The camera will initiate a series
-  /// of callbacks to the application as the image capture progresses. The
-  /// callbacks will be invoked in the order of shutter callback, preview
-  /// callback, and JPEG callback. The shutter callback occurs after the image
-  /// is captured. This can be used to trigger a sound to let the user know that
-  /// image has been captured. The preview callback occurs when a scaled, fully
-  /// processed preview image is available. The JPEG callback occurs when the
-  /// compressed image is available. If there is an error after the capture is
-  /// in progress, the error callback passed to <code>
-  /// ImageCapture_Private.Create()</code> will be invoked. All the callbacks
-  /// are invoked by the thread that calls this function.
-  ///
-  /// The size of the preview image in preview callback is determined by
-  /// <code>ImageCaptureConfig_Private.SetPreviewSize</code>. The format is
-  /// decided by the camera and can be got from <code>VideoFrame.GetFormat
-  /// </code>. The size of the JPEG image is determined by <code>
-  /// ImageCaptureConfig_Private.SetJpegSize</code>.
-  ///
-  /// The camera may need to stop and re-start streaming during image capture.
-  /// If some MediaStreamVideoTrack are associated with the camera source, they
-  /// will receive mute and unmute events. The mute event will be received
-  /// before all the callbacks. The unmute event will be received after all the
-  /// callbacks. The preview image will not be sent to the video tracks
-  /// associated with the camera.
-  ///
-  /// @param[in] shutter_callback A <code>
-  /// ImageCapture_Private_ShutterCallback</code> callback to indicate the
-  /// image has been taken.
-  /// @param[in] preview_callback A <code>
-  /// ImageCapture_Private_PreviewCallback</code> callback to return a
-  /// preview of the captured image.
-  /// @param[in] jpeg_callback A <code>
-  /// ImageCapture_Private_JpegCallback</code> callback to return captured
-  /// JPEG image.
-  /// @param[out] sequence_id The sequence ID is a unique monotonically
-  /// increasing value starting from 0, incremented every time a new request
-  /// like image capture is submitted.
-  ///
-  /// @return An int32_t containing a result code from <code>pp_errors.h</code>.
-  /// PP_OK means the callbacks will be triggered. Other values mean the
-  /// callbacks will not be triggered.
-  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);
-
   /// Determines if a resource is an image capture resource.
   ///
   /// @param[in] resource The <code>Resource</code> to test.