[Merge] Make mouse buttons 8 - 11 navigate forward and back in history

ui/events/ozone/evdev/event_converter_evdev_impl_unittest.cc

Index: ui/events/ozone/evdev/event_converter_evdev_impl_unittest.cc
diff --git a/ui/events/ozone/evdev/event_converter_evdev_impl_unittest.cc b/ui/events/ozone/evdev/event_converter_evdev_impl_unittest.cc
index d5ed5891aa4834946cd4568c93aeea3476fa6091..1b956885fc18ff7d8e7a60d7ec8873a0508964a6 100644
--- a/ui/events/ozone/evdev/event_converter_evdev_impl_unittest.cc
+++ b/ui/events/ozone/evdev/event_converter_evdev_impl_unittest.cc
@@ -398,6 +398,70 @@ TEST_F(EventConverterEvdevImplTest, MouseButton) {
   EXPECT_EQ(true, event->IsLeftMouseButton());
 }
 
+// Test that BTN_BACK and BTN_SIDE are treated as the same button.
+TEST_F(EventConverterEvdevImplTest, MouseBackButton) {
+  ui::MockEventConverterEvdevImpl* dev = device();
+
+  struct input_event mock_kernel_queue[] = {
+      {{0, 0}, EV_KEY, BTN_SIDE, 1},
+      {{0, 0}, EV_SYN, SYN_REPORT, 0},
+
+      {{0, 0}, EV_KEY, BTN_BACK, 1},
+      {{0, 0}, EV_SYN, SYN_REPORT, 0},
+
+      {{0, 0}, EV_KEY, BTN_SIDE, 0},
+      {{0, 0}, EV_SYN, SYN_REPORT, 0},
+
+      {{0, 0}, EV_KEY, BTN_BACK, 0},
+      {{0, 0}, EV_SYN, SYN_REPORT, 0}
+  };
+
+  dev->ProcessEvents(mock_kernel_queue, arraysize(mock_kernel_queue));
+  EXPECT_EQ(2u, size());
+
+  ui::MouseEvent* event = nullptr;
+
+  event = dispatched_mouse_event(0);
+  EXPECT_EQ(ui::ET_MOUSE_PRESSED, event->type());
+  EXPECT_EQ(ui::EF_BACK_MOUSE_BUTTON, event->changed_button_flags());
+
+  event = dispatched_mouse_event(1);
+  EXPECT_EQ(ui::ET_MOUSE_RELEASED, event->type());
+  EXPECT_EQ(ui::EF_BACK_MOUSE_BUTTON, event->changed_button_flags());
+}
+
+// Test that BTN_FORWARD and BTN_EXTRA are treated as the same button.
+TEST_F(EventConverterEvdevImplTest, MouseForwardButton) {
+  ui::MockEventConverterEvdevImpl* dev = device();
+
+  struct input_event mock_kernel_queue[] = {
+      {{0, 0}, EV_KEY, BTN_FORWARD, 1},
+      {{0, 0}, EV_SYN, SYN_REPORT, 0},
+
+      {{0, 0}, EV_KEY, BTN_EXTRA, 1},
+      {{0, 0}, EV_SYN, SYN_REPORT, 0},
+
+      {{0, 0}, EV_KEY, BTN_EXTRA, 0},
+      {{0, 0}, EV_SYN, SYN_REPORT, 0},
+
+      {{0, 0}, EV_KEY, BTN_FORWARD, 0},
+      {{0, 0}, EV_SYN, SYN_REPORT, 0}
+  };
+
+  dev->ProcessEvents(mock_kernel_queue, arraysize(mock_kernel_queue));
+  EXPECT_EQ(2u, size());
+
+  ui::MouseEvent* event = nullptr;
+
+  event = dispatched_mouse_event(0);
+  EXPECT_EQ(ui::ET_MOUSE_PRESSED, event->type());
+  EXPECT_EQ(ui::EF_FORWARD_MOUSE_BUTTON, event->changed_button_flags());
+
+  event = dispatched_mouse_event(1);
+  EXPECT_EQ(ui::ET_MOUSE_RELEASED, event->type());
+  EXPECT_EQ(ui::EF_FORWARD_MOUSE_BUTTON, event->changed_button_flags());
+}
+
 TEST_F(EventConverterEvdevImplTest, MouseMove) {
   ui::MockEventConverterEvdevImpl* dev = device();