Pepper: add Image Capture interfaces.

ppapi/api/private/ppb_image_capture_config_private.idl

+/* Copyright (c) 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.
+ */
+
+/**
+ * This file defines the PPB_ImageCaptureConfig interface for establishing an
+ * image capture configuration resource within the browser.
+ */
+
+[generate_thunk]
+
+label Chrome {
+  M39 = 0.1
+};
+
+/**
+ * The <code>PPB_ImageCaptureConfig</code> interface contains pointers to
+ * several functions for establishing your image capture configuration within

[Pawel Osciak, 2014/08/03 08:34:38]

s/your//

[wuchengli, 2014/08/06 08:14:57]

Done.

+ * the browser. The new configuration will take effect after
+ * <code>PPB_ImageCapture.SetConfig</code> is called.

[Pawel Osciak, 2014/08/03 08:34:38]

s/PPB_ImageCapture/PPB_ImageCapture_Private/ ?

[wuchengli, 2014/08/06 08:14:57]

Done.

+ */
+[version=0.1]
+interface PPB_ImageCaptureConfig_Private {
+  /**
+   * IsImageCaptureConfig() determines if the given resource is a
+   * <code>PPB_ImageCaptureConfig</code>.
+   *
+   * @param[in] resource A <code>PP_Resource</code> corresponding to an image
+   * capture config resource.
+   *
+   * @return A <code>PP_Bool</code> containing <code>PP_TRUE</code> if the given
+   * resource is an <code>ImageCaptureConfig</code> resource, otherwise
+   * <code>PP_FALSE</code>.
+   */
+  PP_Bool IsImageCaptureConfig(
+      [in] PP_Resource resource);
+
+  /**
+   * GetJpegSize() returns the Jpeg photo size in pixels for the given
+   * <code>PPB_ImageCaptureConfig</code>.
+   *
+   * @param[in] config A <code>PP_Resource</code> corresponding to an image
+   * capture config resource.
+   *
+   * @return A <code>PP_Size</code> containing the current photo size of the
+   * configuration.
+   */
+  PP_Size GetJpegSize(
+      [in] PP_Resource config);
+
+  /**
+   * SetJpegSize() sets the Jpeg photo size for the given
+   * <code>PPB_ImageCaptureConfig</code>.
+   *
+   * @param[in] config A <code>PP_Resource</code> corresponding to a
+   * <code>PPB_ImageCaptureConfig</code>.
+   * @param[in] photo_size A <code>PP_Size</code> that indicates the requested
+   * photo size.
+   */

[Justin Chuang, 2014/08/03 09:45:45]

Can this method returns fail on wrong photo_size?

[wuchengli, 2014/08/06 08:14:57]

No. This method only stores the size in this object. The setting is applied by
PPP_ImageCapture_Private.SetConfig. SetConfig can return failure.

+  void SetJpegSize(
+      [in] PP_Resource config,
+      [in] PP_Size photo_size);
+};