Reland of Make ProfileIOData use URLRequestContextBuilder

net/url_request/url_request_context_builder.cc

Index: net/url_request/url_request_context_builder.cc
diff --git a/net/url_request/url_request_context_builder.cc b/net/url_request/url_request_context_builder.cc
index 4955f6b9bd0d546aecdfaf2463650900a9212f49..30972ab4232b4214d17c665fb92463c5c37e0149 100644
--- a/net/url_request/url_request_context_builder.cc
+++ b/net/url_request/url_request_context_builder.cc
@@ -192,6 +192,7 @@
     : name_(nullptr),
       enable_brotli_(false),
       network_quality_estimator_(nullptr),
+      shared_http_user_agent_settings_(nullptr),
       data_enabled_(false),
 #if !BUILDFLAG(DISABLE_FILE_SUPPORT)
       file_enabled_(false),
@@ -203,9 +204,14 @@
       throttling_enabled_(false),
       sdch_enabled_(false),
       cookie_store_set_by_client_(false),
+      transport_security_persister_readonly_(false),
       net_log_(nullptr),
+      shared_host_resolver_(nullptr),
       pac_quick_check_enabled_(true),
-      pac_sanitize_url_policy_(ProxyService::SanitizeUrlPolicy::SAFE) {
+      pac_sanitize_url_policy_(ProxyService::SanitizeUrlPolicy::SAFE),
+      shared_proxy_delegate_(nullptr),
+      shared_http_auth_handler_factory_(nullptr),
+      shared_cert_verifier_(nullptr) {
 }
 
 URLRequestContextBuilder::~URLRequestContextBuilder() {}
@@ -237,6 +243,22 @@
   }
 }
 
+void URLRequestContextBuilder::set_accept_language(
+    const std::string& accept_language) {
+  DCHECK(!shared_http_user_agent_settings_);
+  accept_language_ = accept_language;
+}
+void URLRequestContextBuilder::set_user_agent(const std::string& user_agent) {
+  DCHECK(!shared_http_user_agent_settings_);
+  user_agent_ = user_agent;
+}
+void URLRequestContextBuilder::set_shared_http_user_agent_settings(
+    HttpUserAgentSettings* shared_http_user_agent_settings) {
+  DCHECK(accept_language_.empty());
+  DCHECK(user_agent_.empty());
+  shared_http_user_agent_settings_ = shared_http_user_agent_settings;
+}
+
 void URLRequestContextBuilder::EnableHttpCache(const HttpCacheParams& params) {
   http_cache_enabled_ = true;
   http_cache_params_ = params;
@@ -265,7 +287,14 @@
 
 void URLRequestContextBuilder::SetCertVerifier(
     std::unique_ptr<CertVerifier> cert_verifier) {
+  DCHECK(!shared_cert_verifier_);
   cert_verifier_ = std::move(cert_verifier);
+}
+
+void URLRequestContextBuilder::set_shared_cert_verifier(
+    CertVerifier* shared_cert_verifier) {
+  DCHECK(!cert_verifier_);
+  shared_cert_verifier_ = shared_cert_verifier;
 }
 
 #if BUILDFLAG(ENABLE_REPORTING)
@@ -279,6 +308,12 @@
     std::vector<std::unique_ptr<URLRequestInterceptor>>
         url_request_interceptors) {
   url_request_interceptors_ = std::move(url_request_interceptors);
+}
+
+void URLRequestContextBuilder::set_create_intercepting_job_factory(
+    CreateInterceptingJobFactory create_intercepting_job_factory) {
+  DCHECK(!create_intercepting_job_factory_);
+  create_intercepting_job_factory_ = std::move(create_intercepting_job_factory);
 }
 
 void URLRequestContextBuilder::SetCookieAndChannelIdStores(
@@ -300,12 +335,46 @@
     const std::string& scheme,
     std::unique_ptr<URLRequestJobFactory::ProtocolHandler> protocol_handler) {
   DCHECK(protocol_handler);
+  // If a consumer sets a ProtocolHandler and then overwrites it with another,
+  // it's probably a bug.
+  DCHECK_EQ(0u, protocol_handlers_.count(scheme));
   protocol_handlers_[scheme] = std::move(protocol_handler);
+}
+
+void URLRequestContextBuilder::set_host_resolver(
+    std::unique_ptr<HostResolver> host_resolver) {
+  DCHECK(!shared_host_resolver_);
+  host_resolver_ = std::move(host_resolver);
+}
+
+void URLRequestContextBuilder::set_shared_host_resolver(
+    HostResolver* shared_host_resolver) {
+  DCHECK(!host_resolver_);
+  shared_host_resolver_ = shared_host_resolver;
+}
+
+void URLRequestContextBuilder::set_proxy_delegate(
+    std::unique_ptr<ProxyDelegate> proxy_delegate) {
+  DCHECK(!shared_proxy_delegate_);
+  proxy_delegate_ = std::move(proxy_delegate);
+}
+
+void URLRequestContextBuilder::set_shared_proxy_delegate(
+    ProxyDelegate* shared_proxy_delegate) {
+  DCHECK(!proxy_delegate_);
+  shared_proxy_delegate_ = shared_proxy_delegate;
 }
 
 void URLRequestContextBuilder::SetHttpAuthHandlerFactory(
     std::unique_ptr<HttpAuthHandlerFactory> factory) {
+  DCHECK(!shared_http_auth_handler_factory_);
   http_auth_handler_factory_ = std::move(factory);
+}
+
+void URLRequestContextBuilder::set_shared_http_auth_handler_factory(
+    HttpAuthHandlerFactory* shared_http_auth_handler_factory) {
+  DCHECK(!http_auth_handler_factory_);
+  shared_http_auth_handler_factory_ = shared_http_auth_handler_factory;
 }
 
 void URLRequestContextBuilder::SetHttpServerProperties(
@@ -322,9 +391,13 @@
   context->set_enable_brotli(enable_brotli_);
   context->set_network_quality_estimator(network_quality_estimator_);
 
-  storage->set_http_user_agent_settings(
-      base::MakeUnique<StaticHttpUserAgentSettings>(accept_language_,
-                                                    user_agent_));
+  if (shared_http_user_agent_settings_) {
+    context->set_http_user_agent_settings(shared_http_user_agent_settings_);
+  } else {
+    storage->set_http_user_agent_settings(
+        base::MakeUnique<StaticHttpUserAgentSettings>(accept_language_,
+                                                      user_agent_));
+  }
 
   if (!network_delegate_)
     network_delegate_.reset(new BasicNetworkDelegate);
@@ -338,10 +411,15 @@
     storage->set_net_log(base::WrapUnique(new NetLog));
   }
 
-  if (!host_resolver_) {
-    host_resolver_ = HostResolver::CreateDefaultResolver(context->net_log());
-  }
-  storage->set_host_resolver(std::move(host_resolver_));
+  if (host_resolver_) {
+    DCHECK(!shared_host_resolver_);
+    storage->set_host_resolver(std::move(host_resolver_));
+  } else if (shared_host_resolver_) {
+    context->set_host_resolver(shared_host_resolver_);
+  } else {
+    storage->set_host_resolver(
+        HostResolver::CreateDefaultResolver(context->net_log()));
+  }
 
   if (ssl_config_service_) {
     // This takes a raw pointer, but |storage| will hold onto a reference to the
@@ -351,12 +429,17 @@
     storage->set_ssl_config_service(new SSLConfigServiceDefaults);
   }
 
-  if (!http_auth_handler_factory_) {
-    http_auth_handler_factory_ =
-        HttpAuthHandlerRegistryFactory::CreateDefault(context->host_resolver());
-  }
-
-  storage->set_http_auth_handler_factory(std::move(http_auth_handler_factory_));
+  if (http_auth_handler_factory_) {
+    DCHECK(!shared_http_auth_handler_factory_);
+    storage->set_http_auth_handler_factory(
+        std::move(http_auth_handler_factory_));
+  } else if (shared_http_auth_handler_factory_) {
+    context->set_http_auth_handler_factory(shared_http_auth_handler_factory_);
+  } else {
+    storage->set_http_auth_handler_factory(
+        HttpAuthHandlerRegistryFactory::CreateDefault(
+            context->host_resolver()));
+  }
 
   if (cookie_store_set_by_client_) {
     storage->set_cookie_store(std::move(cookie_store_));
@@ -389,9 +472,10 @@
 
     context->set_transport_security_persister(
         base::WrapUnique<TransportSecurityPersister>(
-            new TransportSecurityPersister(context->transport_security_state(),
-                                           transport_security_persister_path_,
-                                           task_runner, false)));
+            new TransportSecurityPersister(
+                context->transport_security_state(),
+                transport_security_persister_path_, task_runner,
+                transport_security_persister_readonly_)));
   }
 
   if (http_server_properties_) {
@@ -402,7 +486,10 @@
   }
 
   if (cert_verifier_) {
+    DCHECK(!shared_cert_verifier_);
     storage->set_cert_verifier(std::move(cert_verifier_));
+  } else if (shared_cert_verifier_) {
+    context->set_cert_verifier(shared_cert_verifier_);
   } else {
     storage->set_cert_verifier(CertVerifier::CreateDefault());
   }
@@ -448,8 +535,11 @@
   SetHttpNetworkSessionComponents(context.get(), &network_session_context);
 
   if (proxy_delegate_) {
+    DCHECK(!shared_proxy_delegate_);
     network_session_context.proxy_delegate = proxy_delegate_.get();
     storage->set_proxy_delegate(std::move(proxy_delegate_));
+  } else if (shared_proxy_delegate_) {
+    network_session_context.proxy_delegate = shared_proxy_delegate_;
   }
 
   storage->set_http_network_session(base::MakeUnique<HttpNetworkSession>(
@@ -465,10 +555,23 @@
                 {base::MayBlock(), base::TaskPriority::USER_BLOCKING,
                  base::TaskShutdownBehavior::BLOCK_SHUTDOWN});
       }
-      BackendType backend_type =
-          http_cache_params_.type == HttpCacheParams::DISK
-              ? CACHE_BACKEND_DEFAULT
-              : CACHE_BACKEND_SIMPLE;
+      // TODO(mmenke): Maybe merge BackendType and HttpCacheParams::Type? The
+      // first doesn't include in memory, so may require some work.
+      BackendType backend_type = CACHE_BACKEND_DEFAULT;
+      switch (http_cache_params_.type) {
+        case HttpCacheParams::DISK:
+          backend_type = CACHE_BACKEND_DEFAULT;
+          break;
+        case HttpCacheParams::DISK_BLOCKFILE:
+          backend_type = CACHE_BACKEND_BLOCKFILE;
+          break;
+        case HttpCacheParams::DISK_SIMPLE:
+          backend_type = CACHE_BACKEND_SIMPLE;
+          break;
+        case HttpCacheParams::IN_MEMORY:
+          NOTREACHED();
+          break;
+      }
       http_cache_backend.reset(new HttpCache::DefaultBackend(
           DISK_CACHE, backend_type, http_cache_params_.path,
           http_cache_params_.max_size, cache_thread_task_runner_));
@@ -525,6 +628,10 @@
           std::move(top_job_factory), std::move(*i)));
     }
     url_request_interceptors_.clear();
+  }
+  if (create_intercepting_job_factory_) {
+    top_job_factory = std::move(create_intercepting_job_factory_)
+                          .Run(std::move(top_job_factory));
   }
   storage->set_job_factory(std::move(top_job_factory));