Remove isolated app code from iOS's chrome_browser_state_io_data.

ios/chrome/browser/browser_state/chrome_browser_state_impl_io_data.mm

Index: ios/chrome/browser/browser_state/chrome_browser_state_impl_io_data.mm
diff --git a/ios/chrome/browser/browser_state/chrome_browser_state_impl_io_data.mm b/ios/chrome/browser/browser_state/chrome_browser_state_impl_io_data.mm
index cd064ef12ad44d23b35bf963dd8917d879e10036..a62aa622ef4b242d67f543eec3f41f24653ca328 100644
--- a/ios/chrome/browser/browser_state/chrome_browser_state_impl_io_data.mm
+++ b/ios/chrome/browser/browser_state/chrome_browser_state_impl_io_data.mm
@@ -189,11 +189,7 @@ void ChromeBrowserStateImplIOData::Handle::Init(
   lazy_params->cache_path = cache_path;
   lazy_params->cache_max_size = cache_max_size;
   io_data_->lazy_params_.reset(lazy_params);
-
-  // Keep track of profile path and cache sizes separately so we can use them
-  // on demand when creating storage isolated URLRequestContextGetters.
   io_data_->profile_path_ = profile_path;
-  io_data_->app_cache_max_size_ = cache_max_size;
 
   io_data_->InitializeMetricsEnabledStateOnUIThread();
 
@@ -239,28 +235,6 @@ ChromeBrowserStateImplIOData::Handle::CreateMainRequestContextGetter(
   return main_request_context_getter_;
 }
 
-scoped_refptr<IOSChromeURLRequestContextGetter>
-ChromeBrowserStateImplIOData::Handle::CreateIsolatedAppRequestContextGetter(
-    const base::FilePath& partition_path) const {
-  DCHECK_CURRENTLY_ON(web::WebThread::UI);
-  // Check that the partition_path is not the same as the base profile path. We
-  // expect isolated partition, which will never go to the default profile path.
-  CHECK(partition_path != browser_state_->GetStatePath());
-  LazyInitialize();
-
-  // Keep a map of request context getters, one per requested storage partition.
-  IOSChromeURLRequestContextGetterMap::iterator iter =
-      app_request_context_getter_map_.find(partition_path);
-  if (iter != app_request_context_getter_map_.end())
-    return iter->second;
-
-  IOSChromeURLRequestContextGetter* context =
-      IOSChromeURLRequestContextGetter::CreateForIsolatedApp(
-          browser_state_->GetRequestContext(), io_data_, partition_path);
-  app_request_context_getter_map_[partition_path] = context;
-  return context;
-}
-
 ChromeBrowserStateIOData* ChromeBrowserStateImplIOData::Handle::io_data()
     const {
   LazyInitialize();
@@ -306,10 +280,6 @@ ChromeBrowserStateImplIOData::Handle::GetAllContextGetters() {
   scoped_ptr<IOSChromeURLRequestContextGetterVector> context_getters(
       new IOSChromeURLRequestContextGetterVector());
 
-  iter = app_request_context_getter_map_.begin();
-  for (; iter != app_request_context_getter_map_.end(); ++iter)
-    context_getters->push_back(iter->second);
-
   if (main_request_context_getter_.get())
     context_getters->push_back(main_request_context_getter_);
 
@@ -323,8 +293,7 @@ ChromeBrowserStateImplIOData::LazyParams::~LazyParams() {}
 ChromeBrowserStateImplIOData::ChromeBrowserStateImplIOData()
     : ChromeBrowserStateIOData(
           ios::ChromeBrowserStateType::REGULAR_BROWSER_STATE),
-      http_server_properties_manager_(nullptr),
-      app_cache_max_size_(0) {}
+      http_server_properties_manager_(nullptr) {}
 
 ChromeBrowserStateImplIOData::~ChromeBrowserStateImplIOData() {}
 
@@ -449,56 +418,6 @@ void ChromeBrowserStateImplIOData::InitializeInternal(
   lazy_params_.reset();
 }
 
-net::URLRequestContext*
-ChromeBrowserStateImplIOData::InitializeAppRequestContext(
-    net::URLRequestContext* main_context) const {
-  // Copy most state from the main context.
-  AppRequestContext* context = new AppRequestContext();
-  context->CopyFrom(main_context);
-
-  // Use a separate HTTP disk cache for isolated apps.
-  scoped_ptr<net::HttpCache::BackendFactory> app_backend =
-      net::HttpCache::DefaultBackend::InMemory(0);
-  scoped_ptr<net::HttpCache> app_http_cache =
-      CreateHttpFactory(http_network_session_.get(), std::move(app_backend));
-
-  cookie_util::CookieStoreConfig ios_cookie_config(
-      base::FilePath(),
-      cookie_util::CookieStoreConfig::EPHEMERAL_SESSION_COOKIES,
-      cookie_util::CookieStoreConfig::COOKIE_STORE_IOS, nullptr);
-  scoped_refptr<net::CookieStore> cookie_store =
-      cookie_util::CreateCookieStore(ios_cookie_config);
-
-  // Transfer ownership of the cookies and cache to AppRequestContext.
-  context->SetCookieStore(cookie_store.get());
-  context->SetHttpTransactionFactory(std::move(app_http_cache));
-
-  scoped_ptr<net::URLRequestJobFactoryImpl> job_factory(
-      new net::URLRequestJobFactoryImpl());
-  // The data reduction proxy interceptor should be as close to the network as
-  // possible.
-  URLRequestInterceptorScopedVector request_interceptors;
-  request_interceptors.insert(
-      request_interceptors.begin(),
-      data_reduction_proxy_io_data()->CreateInterceptor().release());
-  scoped_ptr<net::URLRequestJobFactory> top_job_factory(SetUpJobFactoryDefaults(
-      std::move(job_factory), std::move(request_interceptors),
-      main_context->network_delegate()));
-  context->SetJobFactory(std::move(top_job_factory));
-
-  return context;
-}
-
-net::URLRequestContext*
-ChromeBrowserStateImplIOData::AcquireIsolatedAppRequestContext(
-    net::URLRequestContext* main_context) const {
-  // We create per-app contexts on demand, unlike the others above.
-  net::URLRequestContext* app_request_context =
-      InitializeAppRequestContext(main_context);
-  DCHECK(app_request_context);
-  return app_request_context;
-}
-
 void ChromeBrowserStateImplIOData::ClearNetworkingHistorySinceOnIOThread(
     base::Time time,
     const base::Closure& completion) {