Move some of IOThread's command line logic to network_session_configurator.

android_webview/browser/net/aw_url_request_context_getter.cc

Index: android_webview/browser/net/aw_url_request_context_getter.cc
diff --git a/android_webview/browser/net/aw_url_request_context_getter.cc b/android_webview/browser/net/aw_url_request_context_getter.cc
index 0f4c68aa43e1e5024bc9acdcd3ce5933f79df9c3..d6ea84f62b7dab68369ee5f08501be76c0c2140e 100644
--- a/android_webview/browser/net/aw_url_request_context_getter.cc
+++ b/android_webview/browser/net/aw_url_request_context_getter.cc
@@ -24,6 +24,7 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/task_scheduler/post_task.h"
 #include "base/threading/sequenced_worker_pool.h"
+#include "components/network_session_configurator/common/network_switches.h"
 #include "components/prefs/pref_service.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
@@ -85,6 +86,7 @@ void ApplyCmdlineOverridesToHostResolver(
 
 void ApplyCmdlineOverridesToNetworkSessionParams(
     net::HttpNetworkSession::Params* params) {
+  // TODO(mmenke):  Should this use network_session_configurator?

[Tobias Sargeant, 2017/06/09 17:55:36]

I think the answer to this is at the moment no, because WebView has no way to
participate in field trials. However this may change in not too distant future.

[mmenke, 2017/06/09 18:02:35]

But it also sets up command line flags, including the ones on the next three
lines.

   int value;
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();