Implement pepper interface and plumbing for HRD's UI on ChromeOS

ppapi/c/private/ppb_talk_private.h

Index: ppapi/c/private/ppb_talk_private.h
diff --git a/ppapi/c/private/ppb_talk_private.h b/ppapi/c/private/ppb_talk_private.h
index 5783d8b64a69520b19307551a1c695609c8a7ef3..7fc11ccc628006a18aed9d5c12314708f8f825ea 100644
--- a/ppapi/c/private/ppb_talk_private.h
+++ b/ppapi/c/private/ppb_talk_private.h
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From private/ppb_talk_private.idl modified Fri Nov  9 14:42:36 2012. */
+/* From private/ppb_talk_private.idl modified Thu Jun  6 10:54:19 2013. */
 
 #ifndef PPAPI_C_PRIVATE_PPB_TALK_PRIVATE_H_
 #define PPAPI_C_PRIVATE_PPB_TALK_PRIVATE_H_
@@ -15,41 +15,142 @@
 #include "ppapi/c/pp_stdint.h"
 
 #define PPB_TALK_PRIVATE_INTERFACE_1_0 "PPB_Talk_Private;1.0"
-#define PPB_TALK_PRIVATE_INTERFACE PPB_TALK_PRIVATE_INTERFACE_1_0
+#define PPB_TALK_PRIVATE_INTERFACE_2_0 "PPB_Talk_Private;2.0"
+#define PPB_TALK_PRIVATE_INTERFACE PPB_TALK_PRIVATE_INTERFACE_2_0
 
 /**
  * @file
- * This file contains the <code>PPB_Talk</code> interface.
+ * This file contains the <code>PPB_Talk_Private</code> interface.
  */
 
 
 /**
+ * @addtogroup Enums
+ * @{
+ */
+/**
+ * The type of permissions that can be requested from the user.
+ */
+typedef enum {
+  /**
+   * Request permission for screencast.
+   */
+  PP_TALKPERMISSION_SCREENCAST,
+  /**
+   * Request permission for Remote Desktop.
+   */
+  PP_TALKPERMISSION_REMOTING,
+  /**
+   * Request permission for continuing Remote Desktop.
+   */
+  PP_TALKPERMISSION_REMOTING_CONTINUE,
+  /**
+   * Number of permissions.
+   */
+  PP_TALKPERMISSION_NUM_PERMISSIONS
+} PP_TalkPermission;
+PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_TalkPermission, 4);
+
+/**
+ * Talk event types reported by the browser.
+ */
+typedef enum {
+  /**
+   * Indicates that the user took action to terminate the remoting session.
+   */
+  PP_TALKEVENT_TERMINATE,
+  /**
+   * Indicates that an error occurred (e.g. failed to show the UI).
+   */
+  PP_TALKEVENT_ERROR,
+  /**
+   * Number of events
+   */
+  PP_TALKEVENT_NUM_EVENTS
+} PP_TalkEvent;
+PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_TalkEvent, 4);
+/**
+ * @}
+ */
+
+/**
+ * @addtogroup Typedefs
+ * @{
+ */
+/**
+ * Callback for Talk events.
+ */
+typedef void (*PP_TalkEventCallback)(void* user_data, PP_TalkEvent event);
+/**
+ * @}
+ */
+
+/**
  * @addtogroup Interfaces
  * @{
  */
 /**
  * Extra interface for Talk.
  */
-struct PPB_Talk_Private_1_0 {
+struct PPB_Talk_Private_2_0 {
   /**
    * Creates a Talk_Private resource.
    */
   PP_Resource (*Create)(PP_Instance instance);
   /**
-   * Displays security UI.
+   * Requests permission from the user using a system modal dialog.
+   *
+   * <code>permission</code> specifies the type of permission to request from
+   * the user.
    *
-   * The callback will be issued with 1 as the result if the user gave
-   * permission, or 0 if the user denied.
+   * <code>callback</code> is the completion callback. It will be issued with 1
+   * as the result if the user gave permission, or 0 if the user denied.
    *
    * You can only have one call pending. It will return PP_OK_COMPLETIONPENDING
    * if the request is queued, or PP_ERROR_INPROGRESS if there is already a
    * request in progress.
    */
-  int32_t (*GetPermission)(PP_Resource talk_resource,
+  int32_t (*RequestPermission)(PP_Resource talk_resource,
+                               PP_TalkPermission permission,
+                               struct PP_CompletionCallback callback);
+  /**
+   * Shows the remoting-in-progress UI and registers a callback for events.
+   *
+   * <code>event_callback</code> is the callback for session releated events.
+   * It will only start receiving events after the completion callback has been
+   * issued. This callback will be called on the pepper main thread.
+   *
+   * <code>user_data</code> is an opaque value used when
+   * <code>event_callback</code> is invoked.
+   *
+   * <code>callback</code> is the completion callback.
+   *
+   * You can only have one call pending. It will return PP_OK_COMPLETIONPENDING
+   * if the request is queued, or PP_ERROR_INPROGRESS if there is already a
+   * request in progress. PP_ERROR_INPROGRESS will also be returned if a
+   * previous call to StartRemoting succeeded without a corresponding
+   * StopRemoting call.
+   */
+  int32_t (*StartRemoting)(PP_Resource talk_resource,
+                           PP_TalkEventCallback event_callback,
+                           void* user_data,
                            struct PP_CompletionCallback callback);
+  /**
+   * Hides the remoting-in-progress UI and unregisters the event callback.
+   *
+   * <code>callback</code> is the completion callback.
+   */
+  int32_t (*StopRemoting)(PP_Resource talk_resource,
+                          struct PP_CompletionCallback callback);
 };
 
-typedef struct PPB_Talk_Private_1_0 PPB_Talk_Private;
+typedef struct PPB_Talk_Private_2_0 PPB_Talk_Private;
+
+struct PPB_Talk_Private_1_0 {
+  PP_Resource (*Create)(PP_Instance instance);
+  int32_t (*GetPermission)(PP_Resource talk_resource,
+                           struct PP_CompletionCallback callback);
+};
 /**
  * @}
  */