Remove shaped desktop support from remoting host and client.

remoting/proto/video.proto

 // Copyright (c) 2012 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.
 
 // Protocol for video messages.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
 package remoting;
 
 message VideoPacketFormat {
+  // Reserved fields IDs used for removed fields: 1 to 4.
+
   // Identifies how the image was encoded.
   enum Encoding {
     ENCODING_INVALID = -1;
     ENCODING_VERBATIM = 0;
     ENCODING_ZLIB = 1;
     ENCODING_VP8 = 2;
     ENCODING_VP9 = 3;
   };
 
   // The encoding used for this image update.
@@ skipping 10 matching lines @@
 }
 
 message Rect {
   optional int32 x = 1;
   optional int32 y = 2;
   optional int32 width = 3;
   optional int32 height = 4;
 }
 
 message VideoPacket {
+  // Reserved fields IDs used for removed fields: 1 to 3, 10, 11.
+
   optional VideoPacketFormat format = 4;
 
   optional bytes data = 5;
 
   // List of rectangles updated by this frame.
   repeated Rect dirty_rects = 6;
 
   // Time in milliseconds spent in capturing this video frame.
   optional int64 capture_time_ms = 7;
 
   // Time in milliseconds spent in encoding this video frame.
   optional int64 encode_time_ms = 8;
 
   // The client's timestamp of the latest event received by the host before
   // starting to capture this video frame.
   optional int64 latest_event_timestamp = 9;
 
-  // Provides the new shape for this frame, iff |use_desktop_shape| is true.
-  repeated Rect desktop_shape_rects = 10;
-
-  // True when |desktop_shape_rects| should be used, false to indicate that
-  // the frame is un-shaped. If the shape has not changed since the preceding
-  // frame then this field should be omitted.
-  optional bool use_desktop_shape = 11;
-
   // Optional frame timestamp. Used in tests to estimate frame latency.
   optional int64 timestamp = 12;
 
   // Frame identifier used to match VideoFrame and VideoAck.
   optional int32 frame_id = 13;
 
   // Time from when the last event was received until capturing has started.
   optional int64 capture_pending_time_ms = 14;
 
   // Total overhead time for IPC and threading when capturing frames.
   optional int64 capture_overhead_time_ms = 15;
 
   // Time between when the frame was captured and when encoder started encoding
   // it.
   optional int64 encode_pending_time_ms = 16;
 
   // Time for which the frame is blocked until it's sent to the client.
   optional int64 send_pending_time_ms = 17;
 }
 
 // VideoAck acknowledges that the frame in the VideoPacket with the same
 // frame_id has been rendered. VideoAck messages must be sent only for frames
 // that have frame_id field set. They must be sent the same order in which
 // the corresponding VideoPackets were received.
 message VideoAck {
   // Frame ID.
   optional int32 frame_id = 1;
 }