Create unique HttpNetworkSession for storage partition.

chrome/browser/ui/webui/signin/inline_login_ui_browsertest.cc

Index: chrome/browser/ui/webui/signin/inline_login_ui_browsertest.cc
diff --git a/chrome/browser/ui/webui/signin/inline_login_ui_browsertest.cc b/chrome/browser/ui/webui/signin/inline_login_ui_browsertest.cc
index c95a829b348ce9c04134db4be9a1dfc39ea1e6e4..8d0ed275ab2d3b6d406efe5b203e4e7634dd1068 100644
--- a/chrome/browser/ui/webui/signin/inline_login_ui_browsertest.cc
+++ b/chrome/browser/ui/webui/signin/inline_login_ui_browsertest.cc
@@ -42,9 +42,12 @@
 #include "google_apis/gaia/fake_gaia.h"
 #include "google_apis/gaia/gaia_switches.h"
 #include "net/base/url_util.h"
+#include "net/http/http_transaction_factory.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 #include "net/test/embedded_test_server/http_request.h"
 #include "net/test/embedded_test_server/http_response.h"
+#include "net/url_request/url_request_context.h"
+#include "net/url_request/url_request_context_getter.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/l10n/l10n_util.h"
@@ -175,10 +178,22 @@ void InlineLoginUIBrowserTest::SetAllowedUsernamePattern(
 
 #if defined(OS_LINUX) || defined(OS_WIN)
 // crbug.com/422868
-#define MAYBE_DifferentStorageId DISABLED_DifferentStorageId
+#define MAYBE_DifferentStorageId DifferentStorageId
 #else
 #define MAYBE_DifferentStorageId DifferentStorageId
 #endif
+void VerifyNetworkSessionsAreDifferent(content::StoragePartition* partition1,
+                                       content::StoragePartition* partition2) {
+  ASSERT_NE(partition1->GetURLRequestContext()
+                ->GetURLRequestContext()
+                ->http_transaction_factory()
+                ->GetSession(),
+            partition2->GetURLRequestContext()
+                ->GetURLRequestContext()
+                ->http_transaction_factory()
+                ->GetSession());
+}
+
 IN_PROC_BROWSER_TEST_F(InlineLoginUIBrowserTest, MAYBE_DifferentStorageId) {
   if (switches::IsEnableWebviewBasedSignin()) {
     ContentInfo info = NavigateAndGetInfo(
@@ -199,6 +214,13 @@ IN_PROC_BROWSER_TEST_F(InlineLoginUIBrowserTest, MAYBE_DifferentStorageId) {
         webview_contents->GetRenderProcessHost();
     ASSERT_NE(info.pid, process->GetID());
     ASSERT_NE(info.storage_partition, process->GetStoragePartition());
+    base::RunLoop run_loop;
+    content::BrowserThread::PostTaskAndReply(
+        content::BrowserThread::IO, FROM_HERE,
+        base::Bind(VerifyNetworkSessionsAreDifferent, info.storage_partition,
+                   process->GetStoragePartition()),
+        run_loop.QuitClosure());
+    run_loop.Run();
   } else {
     GURL test_url = ui_test_utils::GetTestUrl(
         base::FilePath(base::FilePath::kCurrentDirectory),