Add CommandBuffer::SetGetBuffer

ppapi/c/dev/ppb_context_3d_trusted_dev.h

Index: ppapi/c/dev/ppb_context_3d_trusted_dev.h
diff --git a/ppapi/c/dev/ppb_context_3d_trusted_dev.h b/ppapi/c/dev/ppb_context_3d_trusted_dev.h
index a57c9dd950d4f78d6489b76cd15907399d3320bf..5f42dddd5f7a565a412b803bee27029f7d5451ca 100644
--- a/ppapi/c/dev/ppb_context_3d_trusted_dev.h
+++ b/ppapi/c/dev/ppb_context_3d_trusted_dev.h
@@ -62,13 +62,8 @@ struct PPB_Context3DTrusted_Dev {
                            PP_Resource share_context,
                            const int32_t* attrib_list);
 
-  // Initializes the command buffer with the given size.
-  PP_Bool (*Initialize)(PP_Resource context_id, int32_t size);
-
-  // Gets the ring buffer for the command buffer.
-  PP_Bool (*GetRingBuffer)(PP_Resource context_id,
-                           int* shm_handle,
-                           uint32_t* shm_size);
+  // Initializes the command buffer.
+  PP_Bool (*Initialize)(PP_Resource context_id);
 
   // Returns the current state.
   struct PP_Context3DTrustedState (*GetState)(PP_Resource context);