Add Group-Policy to disable the SPDY protocol.

BUG=59105
TEST=Configuration*

Review URL: http://codereview.chromium.org/3782007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@62875 0039d316-1c4b-4281-b951-d872f2087c98

13 files changed, 53 insertions, 0 deletions

diff --git a/chrome/app/policy/policy_templates.grd b/chrome/app/policy/policy_templates.grd
index 04b2e5d..ba673a0 100644
--- a/chrome/app/policy/policy_templates.grd
+++ b/chrome/app/policy/policy_templates.grd
@@ -172,6 +172,13 @@ templates and will be translated for each locale. -->
       If you enable or disable this setting, users cannot change or override this setting in <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph>.
     </message>
 
+    <message name="IDS_POLICY_DISABLESPDY_CAPTION" desc="Caption of the 'Disable SPDY' policy.">
+      Disable SPDY protocol
+    </message>
+    <message name="IDS_POLICY_DISABLESPDY_DESC" desc="Description of the 'Disable SPDY' policy.">
+      Disables use of the SPDY protocol in <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph>.
+    </message>      
+
     <message name="IDS_POLICY_JAVASCRIPTENABLED_CAPTION" desc="Caption of the 'JavaScript enabled' policy settings page.">
       Enable JavaScript
     </message>
diff --git a/chrome/app/policy/policy_templates.json b/chrome/app/policy/policy_templates.json
index 200ccbb..90ce7bb 100644
--- a/chrome/app/policy/policy_templates.json
+++ b/chrome/app/policy/policy_templates.json
@@ -134,6 +134,16 @@
       }
     },
     {
+      'name': 'DisableSpdy',
+      'type': 'main',
+      'annotations': {
+        'platforms': ['linux', 'mac', 'win'],
+        'products': ['chrome'],
+        'features': {'dynamic_refresh': 1},
+        'example_value': True,
+      }
+    },    
+    {
       'name': 'JavascriptEnabled',
       'type': 'main',
       'annotations': {
diff --git a/chrome/browser/net/net_pref_observer.cc b/chrome/browser/net/net_pref_observer.cc
index 1cb2ddc..5ab75ff 100644
--- a/chrome/browser/net/net_pref_observer.cc
+++ b/chrome/browser/net/net_pref_observer.cc
@@ -8,10 +8,15 @@
 #include "chrome/browser/net/predictor_api.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/common/pref_names.h"
+#include "net/http/http_stream_factory.h"
 
 NetPrefObserver::NetPrefObserver(PrefService* prefs) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
   dns_prefetching_enabled_.Init(prefs::kDnsPrefetchingEnabled, prefs, this);
+  spdy_disabled_.Init(prefs::kDisableSpdy, prefs, this);
+
+  ApplySettings();
 }
 
 NetPrefObserver::~NetPrefObserver() {
@@ -21,6 +26,16 @@ NetPrefObserver::~NetPrefObserver() {
 void NetPrefObserver::Observe(NotificationType type,
                               const NotificationSource& source,
                               const NotificationDetails& details) {
+  ApplySettings();
+}
+
+void NetPrefObserver::ApplySettings() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   chrome_browser_net::EnablePredictor(*dns_prefetching_enabled_);
+  net::HttpStreamFactory::set_spdy_enabled(!*spdy_disabled_);
+}
+
+// static
+void NetPrefObserver::RegisterPrefs(PrefService* prefs) {
+  prefs->RegisterBooleanPref(prefs::kDisableSpdy, false);
 }
diff --git a/chrome/browser/net/net_pref_observer.h b/chrome/browser/net/net_pref_observer.h
index d41e8b7..33b0a97 100644
--- a/chrome/browser/net/net_pref_observer.h
+++ b/chrome/browser/net/net_pref_observer.h
@@ -23,8 +23,13 @@ class NetPrefObserver : public NotificationObserver {
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
+  static void RegisterPrefs(PrefService* prefs);
+
  private:
+  void ApplySettings();
+
   BooleanPrefMember dns_prefetching_enabled_;
+  BooleanPrefMember spdy_disabled_;
 
   DISALLOW_COPY_AND_ASSIGN(NetPrefObserver);
 };
diff --git a/chrome/browser/policy/configuration_policy_pref_store.cc b/chrome/browser/policy/configuration_policy_pref_store.cc
index 0e73975..c496348 100644
--- a/chrome/browser/policy/configuration_policy_pref_store.cc
+++ b/chrome/browser/policy/configuration_policy_pref_store.cc
@@ -105,6 +105,8 @@ const ConfigurationPolicyPrefStore::PolicyToPreferenceMapEntry
       prefs::kSearchSuggestEnabled },
   { Value::TYPE_BOOLEAN, kPolicyDnsPrefetchingEnabled,
       prefs::kDnsPrefetchingEnabled },
+  { Value::TYPE_BOOLEAN, kPolicyDisableSpdy,
+      prefs::kDisableSpdy },
   { Value::TYPE_BOOLEAN, kPolicySafeBrowsingEnabled,
       prefs::kSafeBrowsingEnabled },
   { Value::TYPE_BOOLEAN, kPolicyPasswordManagerEnabled,
@@ -201,6 +203,8 @@ ConfigurationPolicyPrefStore::GetChromePolicyValueMap() {
         Value::TYPE_BOOLEAN, key::kSearchSuggestEnabled },
     { ConfigurationPolicyStore::kPolicyDnsPrefetchingEnabled,
         Value::TYPE_BOOLEAN, key::kDnsPrefetchingEnabled },
+    { ConfigurationPolicyStore::kPolicyDisableSpdy,
+        Value::TYPE_BOOLEAN, key::kDisableSpdy },
     { ConfigurationPolicyStore::kPolicySafeBrowsingEnabled,
         Value::TYPE_BOOLEAN, key::kSafeBrowsingEnabled },
     { ConfigurationPolicyStore::kPolicyMetricsReportingEnabled,
diff --git a/chrome/browser/policy/configuration_policy_pref_store_unittest.cc b/chrome/browser/policy/configuration_policy_pref_store_unittest.cc
index 2d13c2f..ca4d51e 100644
--- a/chrome/browser/policy/configuration_policy_pref_store_unittest.cc
+++ b/chrome/browser/policy/configuration_policy_pref_store_unittest.cc
@@ -144,6 +144,8 @@ INSTANTIATE_TEST_CASE_P(
                     prefs::kSearchSuggestEnabled),
         TypeAndName(ConfigurationPolicyStore::kPolicyDnsPrefetchingEnabled,
                     prefs::kDnsPrefetchingEnabled),
+        TypeAndName(ConfigurationPolicyStore::kPolicyDisableSpdy,
+                    prefs::kDisableSpdy),
         TypeAndName(ConfigurationPolicyStore::kPolicySafeBrowsingEnabled,
                     prefs::kSafeBrowsingEnabled),
         TypeAndName(ConfigurationPolicyStore::kPolicyMetricsReportingEnabled,
diff --git a/chrome/browser/policy/configuration_policy_store.h b/chrome/browser/policy/configuration_policy_store.h
index 6df652a..fb21d0e 100644
--- a/chrome/browser/policy/configuration_policy_store.h
+++ b/chrome/browser/policy/configuration_policy_store.h
@@ -31,6 +31,7 @@ class ConfigurationPolicyStore {
     kPolicyDefaultSearchProviderSuggestURL,
     kPolicyDefaultSearchProviderIconURL,
     kPolicyDefaultSearchProviderEncodings,
+    kPolicyDisableSpdy,
     kPolicyProxyServerMode,
     kPolicyProxyServer,
     kPolicyProxyPacUrl,
diff --git a/chrome/browser/policy/managed_prefs_banner_base.cc b/chrome/browser/policy/managed_prefs_banner_base.cc
index 916f44f..e02ec25 100644
--- a/chrome/browser/policy/managed_prefs_banner_base.cc
+++ b/chrome/browser/policy/managed_prefs_banner_base.cc
@@ -76,6 +76,7 @@ void ManagedPrefsBannerBase::Init(PrefService* local_state,
       AddUserPref(prefs::kAlternateErrorPagesEnabled);
       AddUserPref(prefs::kSearchSuggestEnabled);
       AddUserPref(prefs::kDnsPrefetchingEnabled);
+      AddUserPref(prefs::kDisableSpdy);
       AddUserPref(prefs::kSafeBrowsingEnabled);
 #if defined(GOOGLE_CHROME_BUILD)
       AddLocalStatePref(prefs::kMetricsReportingEnabled);
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index 3a40535..a5957c3 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -31,6 +31,7 @@
 #include "chrome/browser/metrics/metrics_service.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
 #include "chrome/browser/net/predictor_api.h"
+#include "chrome/browser/net/net_pref_observer.h"
 #include "chrome/browser/notifications/desktop_notification_service.h"
 #include "chrome/browser/page_info_model.h"
 #include "chrome/browser/password_manager/password_manager.h"
@@ -145,6 +146,7 @@ void RegisterUserPrefs(PrefService* user_prefs) {
   SigninManager::RegisterUserPrefs(user_prefs);
   TemplateURLModel::RegisterUserPrefs(user_prefs);
   InstantController::RegisterUserPrefs(user_prefs);
+  NetPrefObserver::RegisterPrefs(user_prefs);
 }
 
 }  // namespace browser
diff --git a/chrome/common/policy_constants.cc b/chrome/common/policy_constants.cc
index f149a90..ffe93b4 100644
--- a/chrome/common/policy_constants.cc
+++ b/chrome/common/policy_constants.cc
@@ -31,6 +31,7 @@ const char kDefaultSearchProviderIconURL[] =
     "DefaultSearchProviderIconURL";
 const char kDefaultSearchProviderEncodings[] =
     "DefaultSearchProviderEncodings";
+const char kDisableSpdy[] = "DisableSpdy";
 const char kProxyServerMode[] = "ProxyServerMode";
 const char kProxyServer[] = "ProxyServer";
 const char kProxyPacUrl[] = "ProxyPacUrl";
diff --git a/chrome/common/policy_constants.h b/chrome/common/policy_constants.h
index 919bb7f..cebf36b 100644
--- a/chrome/common/policy_constants.h
+++ b/chrome/common/policy_constants.h
@@ -29,6 +29,7 @@ extern const char kDefaultSearchProviderSearchURL[];
 extern const char kDefaultSearchProviderSuggestURL[];
 extern const char kDefaultSearchProviderIconURL[];
 extern const char kDefaultSearchProviderEncodings[];
+extern const char kDisableSpdy[];
 extern const char kProxyServerMode[];
 extern const char kProxyServer[];
 extern const char kProxyPacUrl[];
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 02d5712..fcd461b 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -194,6 +194,9 @@ const char kDnsPrefetchingEnabled[] = "dns_prefetching.enabled";
 // next startup, based on what was actually needed during this startup.
 const char kDnsStartupPrefetchList[] = "StartupDNSPrefetchList";
 
+// Disables the SPDY protocol.
+const char kDisableSpdy[] = "spdy.disabled";
+
 // A list of host names used to fetch web pages, and their commonly used
 // sub-resource hostnames (and expected latency benefits from pre-resolving, or
 // preconnecting to, such sub-resource hostnames).
diff --git a/chrome/common/pref_names.h b/chrome/common/pref_names.h
index bc6bc9a..7f7acdc 100644
--- a/chrome/common/pref_names.h
+++ b/chrome/common/pref_names.h
@@ -71,6 +71,7 @@ extern const char kAlternateErrorPagesEnabled[];
 extern const char kDnsPrefetchingEnabled[];
 extern const char kDnsStartupPrefetchList[];
 extern const char kDnsHostReferralList[];
+extern const char kDisableSpdy[];
 extern const char kCookiePromptExpanded[];
 extern const char kInstantConfirmDialogShown[];
 extern const char kInstantEnabled[];