[scheduling] Use ScopedTaskEnvironment instead of MessageLoop in omnibox

MessageLoop will go away, eventually.

BUG=891670

Change-Id: Ib283fca5ff7e09a4e24bde1f728e195ad365e6ce
Reviewed-on: https://chromium-review.googlesource.com/c/1352761Reviewed-by: Justin Donnelly <jdonnelly@chromium.org>
Commit-Queue: Carlos Caballero <carlscab@google.com>
Cr-Commit-Position: refs/heads/master@{#611753}

components/omnibox/browser/omnibox_controller_unittest.cc

@@ -7,7 +7,7 @@
 #include <memory>
 
 #include "base/macros.h"
-#include "base/message_loop/message_loop.h"
+#include "base/test/scoped_task_environment.h"
 #include "components/omnibox/browser/autocomplete_controller.h"
 #include "components/omnibox/browser/autocomplete_provider.h"
 #include "components/omnibox/browser/omnibox_client.h"
@@ -33,7 +33,7 @@ class OmniboxControllerTest : public testing::Test {
   void SetUp() override;
   void TearDown() override;
 
-  base::MessageLoop message_loop_;
+  base::test::ScopedTaskEnvironment task_environment_;
   std::unique_ptr<TestOmniboxClient> omnibox_client_;
   std::unique_ptr<OmniboxController> omnibox_controller_;
 

components/omnibox/browser/omnibox_pedal_unittest.cc

@@ -4,8 +4,8 @@
 
 #include "components/omnibox/browser/omnibox_pedal.h"
 
-#include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/test/scoped_task_environment.h"
 #include "base/time/time.h"
 #include "components/omnibox/browser/mock_autocomplete_provider_client.h"
 #include "components/omnibox/browser/omnibox_pedal_provider.h"
@@ -20,7 +20,7 @@ class OmniboxPedalTest : public testing::Test {
       : omnibox_client_(new TestOmniboxClient),
         omnibox_edit_controller_(new TestOmniboxEditController) {}
 
-  base::MessageLoop message_loop_;
+  base::test::ScopedTaskEnvironment task_environment_;
   std::unique_ptr<TestOmniboxClient> omnibox_client_;
   std::unique_ptr<TestOmniboxEditController> omnibox_edit_controller_;
 };

components/omnibox/browser/query_in_omnibox_unittest.cc

@@ -4,9 +4,9 @@
 
 #include "components/omnibox/browser/query_in_omnibox.h"
 
-#include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/test/scoped_feature_list.h"
+#include "base/test/scoped_task_environment.h"
 #include "components/omnibox/browser/omnibox_field_trial.h"
 #include "components/omnibox/browser/test_omnibox_client.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -28,7 +28,7 @@ class QueryInOmniboxTest : public testing::Test {
   QueryInOmnibox* model() { return model_.get(); }
 
  private:
-  base::MessageLoop message_loop_;
+  base::test::ScopedTaskEnvironment task_environment_;
   std::unique_ptr<TestOmniboxClient> omnibox_client_;
   std::unique_ptr<QueryInOmnibox> model_;
 };