[Chromecast] Add proxy server support to chromecast

chromecast/browser/cast_browser_process.cc

Index: chromecast/browser/cast_browser_process.cc
diff --git a/chromecast/browser/cast_browser_process.cc b/chromecast/browser/cast_browser_process.cc
index cf7101aab315a05cd2c52005d003c15de9ff24af..97cea0c92312474dbdbac306440340477fd52c8d 100644
--- a/chromecast/browser/cast_browser_process.cc
+++ b/chromecast/browser/cast_browser_process.cc
@@ -4,8 +4,10 @@
 
 #include "chromecast/browser/cast_browser_process.h"
 
+#include <string>

[wzhong, 2017/01/27 23:37:17]

Needed? Or lint complains?

[almasrymina, 2017/02/06 22:38:34]

Done.

 #include <utility>
 
+#include "base/command_line.h"
 #include "base/logging.h"
 #include "build/build_config.h"
 #include "chromecast/base/metrics/cast_metrics_helper.h"
@@ -16,6 +18,11 @@
 #include "chromecast/net/connectivity_checker.h"
 #include "chromecast/service/cast_service.h"
 #include "components/prefs/pref_service.h"
+#include "components/proxy_config/pref_proxy_config_tracker_impl.h"
+#include "components/proxy_config/proxy_config_dictionary.h"
+#include "components/proxy_config/proxy_config_pref_names.h"

[wzhong, 2017/01/27 23:37:17]

Do we need so many header file for adding just a couple of lines at 105?

[almasrymina, 2017/02/06 22:38:34]

Done.

+#include "content/public/browser/browser_thread.h"
+#include "net/proxy/proxy_config.h"
 
 #if defined(OS_ANDROID)
 #include "components/crash/content/browser/crash_dump_manager_android.h"
@@ -42,6 +49,7 @@ CastBrowserProcess::CastBrowserProcess()
     : cast_content_browser_client_(nullptr),
       net_log_(nullptr) {
   DCHECK(!g_instance);
+
   g_instance = this;
 }
 
@@ -94,6 +102,10 @@ void CastBrowserProcess::SetPrefService(
     std::unique_ptr<PrefService> pref_service) {
   DCHECK(!pref_service_);
   pref_service_.swap(pref_service);
+
+  pref_proxy_config_tracker_.reset(new PrefProxyConfigTrackerImpl(
+      pref_service_.get(), content::BrowserThread::GetTaskRunnerForThread(
+                               content::BrowserThread::IO)));
 }
 
 void CastBrowserProcess::SetRemoteDebuggingServer(