Adding UMA stats for Blimp Client

blimp/client/core/blimp_client_context_impl.cc

 // Copyright 2016 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.
 
 #include "blimp/client/core/blimp_client_context_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
+#include "base/metrics/histogram_macros.h"
 #include "base/threading/sequenced_task_runner_handle.h"
 #include "blimp/client/core/blimp_client_switches.h"
 #include "blimp/client/core/compositor/blimp_compositor_dependencies.h"
 #include "blimp/client/core/compositor/blob_channel_feature.h"
 #include "blimp/client/core/contents/blimp_contents_impl.h"
 #include "blimp/client/core/contents/blimp_contents_manager.h"
 #include "blimp/client/core/contents/ime_feature.h"
 #include "blimp/client/core/contents/navigation_feature.h"
 #include "blimp/client/core/contents/tab_control_feature.h"
 #include "blimp/client/core/geolocation/geolocation_feature.h"
@@ skipping 74 matching lines @@
       io_thread_task_runner_, net_components_->GetBrowserConnectionHandler());
 
   RegisterFeatures();
   InitializeSettings();
 
   // Initialize must only be posted after the features have been
   // registered.
   io_thread_task_runner_->PostTask(
       FROM_HERE, base::Bind(&ClientNetworkComponents::Initialize,
                             base::Unretained(net_components_.get())));
+
+  UMA_HISTOGRAM_BOOLEAN("Blimp.Supported", true);
 }
 
 BlimpClientContextImpl::~BlimpClientContextImpl() {
   io_thread_task_runner_->DeleteSoon(FROM_HERE, net_components_.release());
 }
 
 void BlimpClientContextImpl::SetDelegate(BlimpClientContextDelegate* delegate) {
   delegate_ = delegate;
 }
 
@@ skipping 19 matching lines @@
         GetAssignerURL(), io_thread_task_runner_, file_thread_task_runner_));
   }
 
   VLOG(1) << "Trying to get assignment.";
   assignment_source_->GetAssignment(
       client_auth_token,
       base::Bind(&BlimpClientContextImpl::ConnectWithAssignment,
                  weak_factory_.GetWeakPtr()));
 }
 
-void BlimpClientContextImpl::OnConnected() {}
+void BlimpClientContextImpl::OnConnected() {
+  UMA_HISTOGRAM_BOOLEAN("Blimp.Connected", true);
+}
 
-void BlimpClientContextImpl::OnDisconnected(int result) {}
+void BlimpClientContextImpl::OnDisconnected(int result) {
+  UMA_HISTOGRAM_BOOLEAN("Blimp.Connected", false);
+}
 
 GURL BlimpClientContextImpl::GetAssignerURL() {
   return GURL(kDefaultAssignerUrl);
 }
 
 IdentitySource* BlimpClientContextImpl::GetIdentitySource() {
   if (!identity_source_) {
     CreateIdentitySource();
   }
   return identity_source_.get();
@@ skipping 64 matching lines @@
   // Currently we just drop the connection on image decoding error.
   io_thread_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(
           &BrowserConnectionHandler::DropCurrentConnection,
           base::Unretained(net_components_->GetBrowserConnectionHandler())));
 }
 
 }  // namespace client
 }  // namespace blimp