[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..4775cf2181c03c76e2676d40aa1e32c9311ba72a 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>
 #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 +18,7 @@
 #include "chromecast/net/connectivity_checker.h"
 #include "chromecast/service/cast_service.h"
 #include "components/prefs/pref_service.h"
+#include "net/proxy/proxy_config.h"
 
 #if defined(OS_ANDROID)
 #include "components/crash/content/browser/crash_dump_manager_android.h"
@@ -42,6 +45,7 @@ CastBrowserProcess::CastBrowserProcess()
     : cast_content_browser_client_(nullptr),
       net_log_(nullptr) {
   DCHECK(!g_instance);
+
   g_instance = this;
 }
 
@@ -94,6 +98,17 @@ void CastBrowserProcess::SetPrefService(
     std::unique_ptr<PrefService> pref_service) {
   DCHECK(!pref_service_);
   pref_service_.swap(pref_service);
+  std::string proxy_server = pref_service_->GetString("proxy-server");

[almasrymina, 2017/01/25 02:52:56]

the string constants are defined in chromecast/internal/base/base_prefs.h, which
I cannot include here because of dependency restrictions. Please advise.

[almasrymina, 2017/01/25 02:52:56]

I'm not too sure about this part. Essentially I use the SetPrefService method to
initialize the proxy_config param, since the proxy config needs to be read from
the pref service.

[wzhong, 2017/01/25 03:03:45]

In ChromecastSevice, you might load preference and update proxy_config by 
shell::CastBrowserProcess::GetInstance()->proxy_config()

+
+  std::string proxy_bypass = pref_service_->GetString("proxy-bypass-list");
+
+  LOG(INFO) << "Setting proxy-server: " << proxy_server;
+  LOG(INFO) << "Setting proxy-bypass-list: " << proxy_bypass;
+
+  proxy_config_.reset(new net::ProxyConfig());
+
+  proxy_config_->proxy_rules().ParseFromString(proxy_server);
+  proxy_config_->proxy_rules().bypass_rules.ParseFromString(proxy_bypass);
 }
 
 void CastBrowserProcess::SetRemoteDebuggingServer(
@@ -122,6 +137,11 @@ void CastBrowserProcess::SetConnectivityChecker(
   connectivity_checker_.swap(connectivity_checker);
 }
 
+net::ProxyConfig* CastBrowserProcess::proxy_config() {
+  DCHECK(proxy_config_->is_valid());
+  return proxy_config_.get();
+}
+
 void CastBrowserProcess::SetNetLog(net::NetLog* net_log) {
   DCHECK(!net_log_);
   net_log_ = net_log;