Set the initial resolution of an RDP session to the client screen resolution if it is available.

Changes in this CL:
 - The version of the control channel is increased to 3. This allows the host and client to tell if the peer supports capabilities negotiation or not.
 - The client and host negotiate supported capabilities by sending each other a list of the supported capabilities. Capabilities supported by both client and host are assumed to be enabled.
 - The client plugin and webapp negotiate the list of capabilities supported by the client. The webapp has the final word.
 - The DesktopEnvironment interface was extended to provide the list of all supported capabilities and receive the results of negotiation with the client.
 - Added the 'sendInitialResolution' capability. When it is enabled the client sends its screen resolution to the host once the connection has been established.
 - DesktopSessionProxy now waits for the client screen resolution when the 'sendInitialResolution' capability is enabled.

BUG=230893

Review URL: https://chromiumcodereview.appspot.com/13932020

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@195192 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 9 insertions, 0 deletions

diff --git a/remoting/protocol/client_control_dispatcher.cc b/remoting/protocol/client_control_dispatcher.cc
index 6830981..580ea28 100644
--- a/remoting/protocol/client_control_dispatcher.cc
+++ b/remoting/protocol/client_control_dispatcher.cc
@@ -60,6 +60,13 @@ void ClientControlDispatcher::ControlAudio(const AudioControl& audio_control) {
   writer_.Write(SerializeAndFrameMessage(message), base::Closure());
 }
 
+void ClientControlDispatcher::SetCapabilities(
+    const Capabilities& capabilities) {
+  ControlMessage message;
+  message.mutable_capabilities()->CopyFrom(capabilities);
+  writer_.Write(SerializeAndFrameMessage(message), base::Closure());
+}
+
 void ClientControlDispatcher::OnMessageReceived(
     scoped_ptr<ControlMessage> message, const base::Closure& done_task) {
   DCHECK(client_stub_);
@@ -68,6 +75,8 @@ void ClientControlDispatcher::OnMessageReceived(
 
   if (message->has_clipboard_event()) {
     clipboard_stub_->InjectClipboardEvent(message->clipboard_event());
+  } else if (message->has_capabilities()) {
+    client_stub_->SetCapabilities(message->capabilities());
   } else if (message->has_cursor_shape()) {
     client_stub_->SetCursorShape(message->cursor_shape());
   } else {