Do not load extension system in the Profile import process.

chrome/browser/first_run/first_run_browsertest.cc

Index: chrome/browser/first_run/first_run_browsertest.cc
diff --git a/chrome/browser/first_run/first_run_browsertest.cc b/chrome/browser/first_run/first_run_browsertest.cc
index 40383b2eeca09d20f909c16be0bac8807e7c6bc9..32fb1fa90e7c1033b299290c88f6cd4e4955f0cb 100644
--- a/chrome/browser/first_run/first_run_browsertest.cc
+++ b/chrome/browser/first_run/first_run_browsertest.cc
@@ -2,9 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/command_line.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/first_run/first_run.h"
 #include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -37,3 +40,21 @@ IN_PROC_BROWSER_TEST_F(FirstRunBrowserTest, SetShowWelcomePagePref) {
   EXPECT_TRUE(g_browser_process->local_state()->GetBoolean(
       prefs::kShouldShowWelcomePage));
 }
+
+namespace {
+class FirstRunIntegrationBrowserTest : public InProcessBrowserTest {
+ public:
+  FirstRunIntegrationBrowserTest() {}
+ protected:
+  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
+    InProcessBrowserTest::SetUpCommandLine(command_line);
+    command_line->AppendSwitch(switches::kFirstRun);
+    command_line->AppendSwitch(switches::kFirstRunForceImport);
+    EXPECT_FALSE(ProfileManager::DidPerformProfileImport());
+  }
+};
+}
+
+IN_PROC_BROWSER_TEST_F(FirstRunIntegrationBrowserTest, WaitForImport) {
+  ASSERT_TRUE(ProfileManager::DidPerformProfileImport());
+}