Pepper: Expose visible_rect to PPB_VideoDecoder.GetPicture.

ppapi/api/pp_codecs.idl

Index: ppapi/api/pp_codecs.idl
diff --git a/ppapi/api/pp_codecs.idl b/ppapi/api/pp_codecs.idl
index 11010faa8ec19c7653579c18ae1ecf543342f0ae..5a93ff1063f054a130ee0a797280c491138f1d5a 100644
--- a/ppapi/api/pp_codecs.idl
+++ b/ppapi/api/pp_codecs.idl
@@ -74,4 +74,44 @@ struct PP_VideoPicture {
    * Dimensions of the texture holding the decoded picture.
    */
   PP_Size texture_size;
+
+  /**
+   * The visible subrectangle of the picture. The plugin should display only
+   * this part of the picture.
+   */
+  PP_Rect visible_rect;
+};
+
+/**
+ * Struct describing a decoded video picture. The decoded picture data is stored
+ * in the GL texture corresponding to |texture_id|. The plugin can determine
+ * which Decode call generated the picture using |decode_id|.
+ */
+struct PP_VideoPicture_0_1 {
+  /**
+   * |decode_id| parameter of the Decode call which generated this picture.
+   * See the PPB_VideoDecoder function Decode() for more details.
+   */
+  uint32_t decode_id;
+
+  /**
+   * Texture ID in the plugin's GL context. The plugin can use this to render
+   * the decoded picture.
+   */
+  uint32_t texture_id;
+
+  /**
+   * The GL texture target for the decoded picture. Possible values are:
+   *   GL_TEXTURE_2D
+   *   GL_TEXTURE_RECTANGLE_ARB
+   *   GL_TEXTURE_EXTERNAL_OES
+   *
+   * The pixel format of the texture is GL_RGBA.
+   */
+  uint32_t texture_target;
+
+  /**
+   * Dimensions of the texture holding the decoded picture.
+   */
+  PP_Size texture_size;
 };