[Chromoting] Make the client plugin tell the webapp when the first video buffer arrives.

A follow-up CL will make the pyauto test wait until the first video buffer
arrives before declaring that a connection has succeeded.

BUG=129791


Review URL: https://chromiumcodereview.appspot.com/10444035

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@139131 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 21 insertions, 0 deletions

diff --git a/remoting/webapp/client_plugin_async.js b/remoting/webapp/client_plugin_async.js
index d837cd5..b016e03 100644
--- a/remoting/webapp/client_plugin_async.js
+++ b/remoting/webapp/client_plugin_async.js
@@ -189,6 +189,10 @@ remoting.ClientPluginAsync.prototype.handleMessage_ = function(messageStr) {
       remoting.clipboard.fromHost(message.data['mimeType'],
                                   message.data['item']);
     }
+  } else if (message.method == 'onFirstFrameReceived') {
+    if (remoting.clientSession) {
+      remoting.clientSession.onFirstFrameReceived();
+    }
   }
 }
 
diff --git a/remoting/webapp/client_session.js b/remoting/webapp/client_session.js
index a73a8cf..dfccccd 100644
--- a/remoting/webapp/client_session.js
+++ b/remoting/webapp/client_session.js
@@ -56,6 +56,7 @@ remoting.ClientSession = function(hostJid, hostPublicKey, sharedSecret,
   /** @type {remoting.ClientPlugin} */
   this.plugin = null;
   this.scaleToFit = false;
+  this.hasReceivedFrame_ = false;
   this.logToServer = new remoting.LogToServer();
   this.onStateChange = onStateChange;
 
@@ -421,6 +422,22 @@ remoting.ClientSession.prototype.getScaleToFit = function() {
 }
 
 /**
+ * Called when the client receives its first frame.
+ *
+ * @return {void} Nothing.
+ */
+remoting.ClientSession.prototype.onFirstFrameReceived = function() {
+  this.hasReceivedFrame_ = true;
+};
+
+/**
+ * @return {boolean} Whether the client has received a video buffer.
+ */
+remoting.ClientSession.prototype.hasReceivedFrame = function() {
+  return this.hasReceivedFrame_;
+};
+
+/**
  * Sends an IQ stanza via the http xmpp proxy.
  *
  * @private