Measure bandwidth for chromoting video channel

remoting/client/plugin/chromoting_scriptable_object.cc

Index: remoting/client/plugin/chromoting_scriptable_object.cc
diff --git a/remoting/client/plugin/chromoting_scriptable_object.cc b/remoting/client/plugin/chromoting_scriptable_object.cc
index 9a3e2c08e4e738a870566c3d30c416218909532c..64d6cd5761f4dd7de46b53be66e2e735b951a136 100644
--- a/remoting/client/plugin/chromoting_scriptable_object.cc
+++ b/remoting/client/plugin/chromoting_scriptable_object.cc
@@ -8,6 +8,7 @@
 #include "base/stringprintf.h"
 #include "ppapi/cpp/var.h"
 #include "remoting/client/client_config.h"
+#include "remoting/client/chromoting_stats.h"
 #include "remoting/client/plugin/chromoting_instance.h"
 #include "remoting/client/plugin/pepper_xmpp_proxy.h"
 
@@ -26,6 +27,7 @@ const char kLoginChallenge[] = "loginChallenge";
 const char kSendIq[] = "sendIq";
 const char kQualityAttribute[] = "quality";
 const char kStatusAttribute[] = "status";
+const char kVideoBandwidthAttribute[] = "videoBandwidth";
 
 }  // namespace
 
@@ -69,6 +71,9 @@ void ChromotingScriptableObject::Init() {
   AddAttribute(kDesktopWidth, Var(0));
   AddAttribute(kDesktopHeight, Var(0));
 
+  // Statistics.
+  AddAttribute(kVideoBandwidthAttribute, Var());
+
   AddMethod("connect", &ChromotingScriptableObject::DoConnect);
   AddMethod("connectSandboxed",
             &ChromotingScriptableObject::DoConnectSandboxed);
@@ -126,6 +131,12 @@ Var ChromotingScriptableObject::GetProperty(const Var& name, Var* exception) {
     return ScriptableObject::GetProperty(name, exception);
   }
 
+  // If this is a statistics attribute then return the value from
+  // ChromotingStats structure.
+  if (name.AsString() == kVideoBandwidthAttribute) {
+    return instance_->GetStats()->video_bandwidth()->Rate();
+  }
+
   // TODO(ajwong): This incorrectly return a null object if a function
   // property is requested.
   return properties_[iter->second].attribute;