Move a number of static variables SPDY to HttpNetworkSession::Params.

chrome/browser/io_thread.h

Index: chrome/browser/io_thread.h
diff --git a/chrome/browser/io_thread.h b/chrome/browser/io_thread.h
index de61126a3955a407e8353be7a420a82da74d5f5a..5e2058c391475eef4b8a09c782b4a3cbb5538c8f 100644
--- a/chrome/browser/io_thread.h
+++ b/chrome/browser/io_thread.h
@@ -17,6 +17,7 @@
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/browser_thread_delegate.h"
 #include "net/base/network_change_notifier.h"
+#include "net/socket/next_proto.h"
 
 class ChromeNetLog;
 class CommandLine;
@@ -69,6 +70,11 @@ class PolicyService;
 // content::BrowserThread.
 class IOThread : public content::BrowserThreadDelegate {
  public:
+  enum OptionalBoolean {
+    DEFAULT,
+    TRUE,
+    FALSE,
+  };

[Nico, 2012/12/02 03:54:23]

Ugh. Do we have an optional<> template somewhere? If not, can you add a small
nexted optional<> class here?

[Ryan Hamilton, 2012/12/03 23:04:12]

Done.

   struct Globals {
     class SystemRequestContextLeakChecker {
      public:
@@ -127,6 +133,15 @@ class IOThread : public content::BrowserThreadDelegate {
     bool http_pipelining_enabled;
     uint16 testing_fixed_http_port;
     uint16 testing_fixed_https_port;
+    int max_spdy_sessions_per_domain;
+    size_t initial_max_spdy_concurrent_streams;
+    size_t max_spdy_concurrent_streams_limit;
+    OptionalBoolean force_spdy_single_domain;
+    OptionalBoolean enable_spdy_ip_pooling;
+    OptionalBoolean enable_spdy_credential_frames;
+    OptionalBoolean enable_spdy_compression;
+    OptionalBoolean enable_spdy_ping_based_connection_checking;
+    net::NextProto spdy_default_protocol;
     // NetErrorTabHelper uses |dns_probe_service| to send DNS probes when a
     // main frame load fails with a DNS error in order to provide more useful
     // information to the renderer so it can show a more specific error page.