Remove use of deprecated MessageLoop methods in ui.

ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11_unittest.cc

Index: ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11_unittest.cc
diff --git a/ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11_unittest.cc b/ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11_unittest.cc
index 81e70381e15dab72db83f3bbd42b6c73c6de91ae..bd1e5e8e47464a816a965830b2b331f366a4077e 100644
--- a/ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11_unittest.cc
+++ b/ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11_unittest.cc
@@ -10,10 +10,13 @@
 // conflicts with the definition of None in gtest-type-util.h
 #include "ui/views/test/views_test_base.h"
 
+#include "base/location.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "ui/aura/test/test_screen.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_tree_host.h"
@@ -533,19 +536,15 @@ void BasicStep3(TestDragDropClient* client, XID toplevel) {
 TEST_F(DesktopDragDropClientAuraX11Test, Basic) {
   XID toplevel = 1;
 
-  base::MessageLoop::current()->PostTask(FROM_HERE,
-                                         base::Bind(&BasicStep2,
-                                         client(),
-                                         toplevel));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&BasicStep2, client(), toplevel));
   int result = StartDragAndDrop();
   EXPECT_EQ(ui::DragDropTypes::DRAG_COPY, result);
 
   // Do another drag and drop to test that the data is properly cleaned up as a
   // result of the XdndFinished message.
-  base::MessageLoop::current()->PostTask(FROM_HERE,
-                                         base::Bind(&BasicStep3,
-                                         client(),
-                                         toplevel));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&BasicStep3, client(), toplevel));
   result = StartDragAndDrop();
   EXPECT_EQ(ui::DragDropTypes::DRAG_COPY, result);
 }
@@ -576,8 +575,8 @@ TEST_F(DesktopDragDropClientAuraX11Test, HighDPI200) {
       static_cast<aura::TestScreen*>(display::Screen::GetScreen());
   screen->SetDeviceScaleFactor(2.0f);
 
-  base::MessageLoop::current()->PostTask(FROM_HERE,
-                                         base::Bind(&HighDPIStep, client()));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&HighDPIStep, client()));
   int result = StartDragAndDrop();
   EXPECT_EQ(ui::DragDropTypes::DRAG_NONE, result);
 }
@@ -587,8 +586,8 @@ TEST_F(DesktopDragDropClientAuraX11Test, HighDPI150) {
       static_cast<aura::TestScreen*>(display::Screen::GetScreen());
   screen->SetDeviceScaleFactor(1.5f);
 
-  base::MessageLoop::current()->PostTask(FROM_HERE,
-                                         base::Bind(&HighDPIStep, client()));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&HighDPIStep, client()));
   int result = StartDragAndDrop();
   EXPECT_EQ(ui::DragDropTypes::DRAG_NONE, result);
 }
@@ -621,9 +620,8 @@ void TargetDoesNotRespondStep2(TestDragDropClient* client) {
 // DNDCollectionWindow is an example of an XdndAware target which does not
 // respond to XdndPosition messages at all.
 TEST_F(DesktopDragDropClientAuraX11Test, TargetDoesNotRespond) {
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&TargetDoesNotRespondStep2, client()));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&TargetDoesNotRespondStep2, client()));
   int result = StartDragAndDrop();
   EXPECT_EQ(ui::DragDropTypes::DRAG_NONE, result);
 }
@@ -667,9 +665,8 @@ void QueuePositionStep2(TestDragDropClient* client) {
 // Test that XdndPosition messages are queued till the pending XdndPosition
 // message is acked via an XdndStatus message.
 TEST_F(DesktopDragDropClientAuraX11Test, QueuePosition) {
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&QueuePositionStep2, client()));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&QueuePositionStep2, client()));
   int result = StartDragAndDrop();
   EXPECT_EQ(ui::DragDropTypes::DRAG_COPY, result);
 }
@@ -720,9 +717,8 @@ void TargetChangesStep2(TestDragDropClient* client) {
 
 // Test the behavior when the target changes during a drag.
 TEST_F(DesktopDragDropClientAuraX11Test, TargetChanges) {
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&TargetChangesStep2, client()));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&TargetChangesStep2, client()));
   int result = StartDragAndDrop();
   EXPECT_EQ(ui::DragDropTypes::DRAG_COPY, result);
 }
@@ -790,16 +786,14 @@ void RejectAfterMouseReleaseStep3(TestDragDropClient* client) {
 // Test that the source sends XdndLeave instead of XdndDrop if the drag
 // operation is rejected after the mouse is released.
 TEST_F(DesktopDragDropClientAuraX11Test, RejectAfterMouseRelease) {
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&RejectAfterMouseReleaseStep2, client()));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&RejectAfterMouseReleaseStep2, client()));
   int result = StartDragAndDrop();
   EXPECT_EQ(ui::DragDropTypes::DRAG_NONE, result);
 
   // Repeat the test but reject the drop in the XdndFinished message instead.
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&RejectAfterMouseReleaseStep3, client()));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&RejectAfterMouseReleaseStep3, client()));
   result = StartDragAndDrop();
   EXPECT_EQ(ui::DragDropTypes::DRAG_NONE, result);
 }
@@ -998,9 +992,8 @@ void ChromeSourceTargetStep2(SimpleTestDragDropClient* client,
 }  // namespace
 
 TEST_F(DesktopDragDropClientAuraX11ChromeSourceTargetTest, Basic) {
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&ChromeSourceTargetStep2, client(), ui::EF_NONE));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&ChromeSourceTargetStep2, client(), ui::EF_NONE));
   int result = StartDragAndDrop();
   EXPECT_EQ(ui::DragDropTypes::DRAG_COPY, result);
 }
@@ -1008,7 +1001,7 @@ TEST_F(DesktopDragDropClientAuraX11ChromeSourceTargetTest, Basic) {
 // Test that if 'Ctrl' is pressed during a drag and drop operation, that
 // the aura::client::DragDropDelegate is properly notified.
 TEST_F(DesktopDragDropClientAuraX11ChromeSourceTargetTest, CtrlPressed) {
-  base::MessageLoop::current()->PostTask(
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE,
       base::Bind(&ChromeSourceTargetStep2, client(), ui::EF_CONTROL_DOWN));
   int result = StartDragAndDrop();