Reland "Implement async touchmove dispatch during scroll"

content/browser/renderer_host/render_widget_host_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/shared_memory.h"
 #include "base/timer/timer.h"
@@ skipping 1529 matching lines @@
   view_->set_bounds(gfx::Rect(0, 0, 400, 200));
   view_->Show();
 
   {
     // Start and end a gesture in the same direction without processing the
     // gesture events in the renderer. This should initiate and complete an
     // overscroll navigation.
     SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                          WebGestureEvent::Touchscreen);
     SimulateGestureScrollUpdateEvent(300, -5, 0);
-    SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                      INPUT_EVENT_ACK_STATE_CONSUMED);
     SendInputEventACK(WebInputEvent::GestureScrollUpdate,
                       INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
     EXPECT_EQ(OVERSCROLL_EAST, host_->overscroll_mode());
     EXPECT_EQ(OVERSCROLL_EAST, host_->overscroll_delegate()->current_mode());
     process_->sink().ClearMessages();
 
     SimulateGestureEvent(WebInputEvent::GestureScrollEnd,
                          WebGestureEvent::Touchscreen);
     EXPECT_EQ(OVERSCROLL_EAST, host_->overscroll_delegate()->completed_mode());
     EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_delegate()->current_mode());
     EXPECT_EQ(1U, process_->sink().message_count());
-    SendInputEventACK(WebInputEvent::GestureScrollEnd,
-                      INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   }
 
   {
     // Start over, except instead of ending the gesture with ScrollEnd, end it
     // with a FlingStart, with velocity in the reverse direction. This should
     // initiate an overscroll navigation, but it should be cancelled because of
     // the fling in the opposite direction.
     host_->overscroll_delegate()->Reset();
     SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                          WebGestureEvent::Touchscreen);
     SimulateGestureScrollUpdateEvent(-300, -5, 0);
-    SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                      INPUT_EVENT_ACK_STATE_CONSUMED);
     SendInputEventACK(WebInputEvent::GestureScrollUpdate,
                       INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
     EXPECT_EQ(OVERSCROLL_WEST, host_->overscroll_mode());
     EXPECT_EQ(OVERSCROLL_WEST, host_->overscroll_delegate()->current_mode());
     process_->sink().ClearMessages();
 
     SimulateGestureFlingStartEvent(100, 0, WebGestureEvent::Touchscreen);
     EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_delegate()->completed_mode());
     EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_delegate()->current_mode());
     EXPECT_EQ(1U, process_->sink().message_count());
   }
 }
 
 // Tests that touch-scroll events are handled correctly by the overscroll
 // controller. This also tests that the overscroll controller and the
 // gesture-event filter play nice with each other.
 TEST_F(RenderWidgetHostTest, GestureScrollOverscrolls) {
   // Turn off debounce handling for test isolation.
   host_->SetupForOverscrollControllerTest();
   host_->DisableGestureDebounce();
   process_->sink().ClearMessages();
 
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        WebGestureEvent::Touchscreen);
-  SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                    INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_mode());
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_delegate()->current_mode());
 
   // Send another gesture event and ACK as not being processed. This should
   // initiate the navigation gesture.
   SimulateGestureScrollUpdateEvent(55, -5, 0);
   SendInputEventACK(WebInputEvent::GestureScrollUpdate,
                     INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(OVERSCROLL_EAST, host_->overscroll_mode());
   EXPECT_EQ(OVERSCROLL_EAST, host_->overscroll_delegate()->current_mode());
@@ skipping 37 matching lines @@
   // Turn off debounce handling for test isolation.
   host_->SetupForOverscrollControllerTest();
   host_->DisableGestureDebounce();
   process_->sink().ClearMessages();
 
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        WebGestureEvent::Touchscreen);
   SimulateGestureScrollUpdateEvent(10, 0, 0);
 
   // Start scrolling on content. ACK both events as being processed.
-  SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
   SendInputEventACK(WebInputEvent::GestureScrollUpdate,
                     INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_mode());
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_delegate()->current_mode());
   process_->sink().ClearMessages();
 
   // Send another gesture event and ACK as not being processed. This should
   // not initiate overscroll because the beginning of the scroll event did
   // scroll some content on the page. Since there was no overscroll, the event
   // should reach the renderer.
   SimulateGestureScrollUpdateEvent(55, 0, 0);
   EXPECT_EQ(1U, process_->sink().message_count());
   SendInputEventACK(WebInputEvent::GestureScrollUpdate,
                     INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_mode());
 }
 
 // Tests that the overscroll controller plays nice with touch-scrolls and the
 // gesture event filter with debounce filtering turned on.
 TEST_F(RenderWidgetHostTest, GestureScrollDebounceOverscrolls) {
   host_->SetupForOverscrollControllerTest();
   host_->set_debounce_interval_time_ms(100);
   process_->sink().ClearMessages();
 
   // Start scrolling. Receive ACK as it being processed.
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        WebGestureEvent::Touchscreen);
   EXPECT_EQ(1U, process_->sink().message_count());
   process_->sink().ClearMessages();
-  SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
 
   // Send update events.
   SimulateGestureScrollUpdateEvent(25, 0, 0);
   EXPECT_EQ(1U, host_->GestureEventLastQueueEventSize());
   EXPECT_EQ(0U, host_->GestureEventDebouncingQueueSize());
   EXPECT_TRUE(host_->ScrollingInProgress());
   EXPECT_EQ(1U, process_->sink().message_count());
   process_->sink().ClearMessages();
 
   // Quickly end and restart the scroll gesture. These two events should get
@@ skipping 58 matching lines @@
 TEST_F(RenderWidgetHostTest, GestureScrollDebounceTimerOverscroll) {
   host_->SetupForOverscrollControllerTest();
   host_->set_debounce_interval_time_ms(10);
   process_->sink().ClearMessages();
 
   // Start scrolling. Receive ACK as it being processed.
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        WebGestureEvent::Touchscreen);
   EXPECT_EQ(1U, process_->sink().message_count());
   process_->sink().ClearMessages();
-  SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
 
   // Send update events.
   SimulateGestureScrollUpdateEvent(55, 0, 0);
   EXPECT_EQ(1U, host_->GestureEventLastQueueEventSize());
   EXPECT_EQ(0U, host_->GestureEventDebouncingQueueSize());
   EXPECT_TRUE(host_->ScrollingInProgress());
   EXPECT_EQ(1U, process_->sink().message_count());
   process_->sink().ClearMessages();
 
   // Send an end event. This should get in the debounce queue.
@@ skipping 60 matching lines @@
   process_->sink().ClearMessages();
   SendInputEventACK(WebInputEvent::TouchMove,
                     INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
 
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_mode());
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_delegate()->current_mode());
 
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        WebGestureEvent::Touchscreen);
   SimulateGestureScrollUpdateEvent(20, 0, 0);
-  SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                    INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   SendInputEventACK(WebInputEvent::GestureScrollUpdate,
                     INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_mode());
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_delegate()->current_mode());
   process_->sink().ClearMessages();
 
   // Another touch move event should reach the renderer since overscroll hasn't
   // started yet.
   MoveTouchPoint(0, 65, 10);
   SendTouchEvent();
@@ skipping 94 matching lines @@
   view_->Show();
 
   // Start scrolling. Receive ACK as it being processed.
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        WebGestureEvent::Touchscreen);
   EXPECT_EQ(1U, process_->sink().message_count());
   // The scroll begin event will have received a synthetic ack from the input
   // router.
   EXPECT_EQ(0U, host_->GestureEventLastQueueEventSize());
   process_->sink().ClearMessages();
-  SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, host_->GestureEventLastQueueEventSize());
   EXPECT_EQ(0U, process_->sink().message_count());
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_mode());
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_delegate()->current_mode());
 
   // Send update events.
   SimulateGestureScrollUpdateEvent(55, -5, 0);
   EXPECT_EQ(1U, host_->GestureEventLastQueueEventSize());
   EXPECT_EQ(0U, host_->GestureEventDebouncingQueueSize());
   EXPECT_TRUE(host_->ScrollingInProgress());
@@ skipping 25 matching lines @@
       FROM_HERE,
       base::MessageLoop::QuitClosure(),
       TimeDelta::FromMilliseconds(10));
   base::MessageLoop::current()->Run();
   EXPECT_EQ(1U, process_->sink().message_count());
   process_->sink().ClearMessages();
   // The scroll end event will have received a synthetic ack from the input
   // router.
   EXPECT_EQ(0U, host_->GestureEventLastQueueEventSize());
   EXPECT_EQ(0U, host_->GestureEventDebouncingQueueSize());
-
-  SendInputEventACK(blink::WebInputEvent::GestureScrollEnd,
-                    INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
-  EXPECT_EQ(0U, host_->GestureEventLastQueueEventSize());
-  EXPECT_EQ(0U, host_->GestureEventDebouncingQueueSize());
 
   // Start scrolling. Receive ACK as it being processed.
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        WebGestureEvent::Touchscreen);
   EXPECT_EQ(1U, process_->sink().message_count());
   // The scroll begin event will have received a synthetic ack from the input
   // router.
   EXPECT_EQ(0U, host_->GestureEventLastQueueEventSize());
   process_->sink().ClearMessages();
-  SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, host_->GestureEventLastQueueEventSize());
   EXPECT_EQ(0U, process_->sink().message_count());
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_mode());
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_delegate()->current_mode());
 
   // Send update events.
   SimulateGestureScrollUpdateEvent(235, -5, 0);
   EXPECT_EQ(1U, host_->GestureEventLastQueueEventSize());
   EXPECT_EQ(0U, host_->GestureEventDebouncingQueueSize());
   EXPECT_TRUE(host_->ScrollingInProgress());
@@ skipping 26 matching lines @@
       FROM_HERE,
       base::MessageLoop::QuitClosure(),
       TimeDelta::FromMilliseconds(10));
   base::MessageLoop::current()->Run();
   EXPECT_EQ(1U, process_->sink().message_count());
   process_->sink().ClearMessages();
   // The scroll end event will have received a synthetic ack from the input
   // router.
   EXPECT_EQ(0U, host_->GestureEventLastQueueEventSize());
   EXPECT_EQ(0U, host_->GestureEventDebouncingQueueSize());
-
-  SendInputEventACK(blink::WebInputEvent::GestureScrollEnd,
-                    INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
-  EXPECT_EQ(0U, host_->GestureEventLastQueueEventSize());
-  EXPECT_EQ(0U, host_->GestureEventDebouncingQueueSize());
 }
 
 TEST_F(RenderWidgetHostTest, OverscrollDirectionChange) {
   host_->SetupForOverscrollControllerTest();
   host_->set_debounce_interval_time_ms(100);
   process_->sink().ClearMessages();
 
   // Start scrolling. Receive ACK as it being processed.
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        WebGestureEvent::Touchscreen);
   EXPECT_EQ(1U, process_->sink().message_count());
   process_->sink().ClearMessages();
-  SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
 
   // Send update events and receive ack as not consumed.
   SimulateGestureScrollUpdateEvent(125, -5, 0);
   EXPECT_EQ(1U, host_->GestureEventLastQueueEventSize());
   EXPECT_EQ(0U, host_->GestureEventDebouncingQueueSize());
   EXPECT_TRUE(host_->ScrollingInProgress());
   EXPECT_EQ(1U, process_->sink().message_count());
   process_->sink().ClearMessages();
 
   SendInputEventACK(WebInputEvent::GestureScrollUpdate,
@@ skipping 66 matching lines @@
   SimulateMouseMove(5, 10, 0);
   SendInputEventACK(WebInputEvent::MouseMove,
                     INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(1U, process_->sink().message_count());
   process_->sink().ClearMessages();
 
   // Now try with gestures.
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        WebGestureEvent::Touchscreen);
   SimulateGestureScrollUpdateEvent(300, -5, 0);
-  SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
   SendInputEventACK(WebInputEvent::GestureScrollUpdate,
                     INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(OVERSCROLL_EAST, host_->overscroll_mode());
   EXPECT_EQ(OVERSCROLL_EAST, host_->overscroll_delegate()->current_mode());
   process_->sink().ClearMessages();
 
   // Overscroll gesture is in progress. Send a mouse-move now. This should
   // complete the gesture (because the amount overscrolled is above the
   // threshold).
   SimulateMouseMove(5, 10, 0);
   EXPECT_EQ(OVERSCROLL_EAST, host_->overscroll_delegate()->completed_mode());
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_mode());
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_delegate()->current_mode());
   EXPECT_EQ(1U, process_->sink().message_count());
   process_->sink().ClearMessages();
   SendInputEventACK(WebInputEvent::MouseMove,
                     INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
 
   SimulateGestureEvent(WebInputEvent::GestureScrollEnd,
                        WebGestureEvent::Touchscreen);
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_delegate()->current_mode());
   EXPECT_EQ(1U, process_->sink().message_count());
   process_->sink().ClearMessages();
-  SendInputEventACK(WebInputEvent::GestureScrollEnd,
-                    INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
 
   // Move mouse some more. The mouse-move events should reach the renderer.
   SimulateMouseMove(5, 10, 0);
   EXPECT_EQ(1U, process_->sink().message_count());
 
   SendInputEventACK(WebInputEvent::MouseMove,
                     INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   process_->sink().ClearMessages();
 }
 
@@ skipping 65 matching lines @@
   host_->SetupForOverscrollControllerTest();
   process_->sink().ClearMessages();
   view_->set_bounds(gfx::Rect(0, 0, 400, 200));
   view_->Show();
 
   // Start an overscroll with gesture scroll. In the middle of the scroll, blur
   // the host.
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        WebGestureEvent::Touchscreen);
   SimulateGestureScrollUpdateEvent(300, -5, 0);
-  SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
   SendInputEventACK(WebInputEvent::GestureScrollUpdate,
                     INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(OVERSCROLL_EAST, host_->overscroll_mode());
   EXPECT_EQ(OVERSCROLL_EAST, host_->overscroll_delegate()->current_mode());
 
   host_->Blur();
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_mode());
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_delegate()->current_mode());
   EXPECT_EQ(OVERSCROLL_NONE, host_->overscroll_delegate()->completed_mode());
   EXPECT_EQ(0.f, host_->overscroll_delegate()->delta_x());
@@ skipping 51 matching lines @@
   view_->set_bounds(gfx::Rect(0, 0, 400, 200));
   view_->Show();
 
   SimulateMouseEvent(WebInputEvent::MouseMove, 10, 10, 0, false);
   EXPECT_EQ(0U, process_->sink().message_count());
 
   // Mouse press becomes touch start which in turn becomes tap.
   SimulateMouseEvent(WebInputEvent::MouseDown, 10, 10, 0, true);
   EXPECT_EQ(WebInputEvent::TouchStart, host_->acked_touch_event_type());
   EXPECT_EQ("GestureTapDown", GetInputMessageTypes(process_));
-  SendInputEventACK(WebInputEvent::GestureTapDown,
-                    INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
 
   // Mouse drag generates touch move, cancels tap and starts scroll.
   SimulateMouseEvent(WebInputEvent::MouseMove, 10, 30, 0, true);
   EXPECT_EQ(WebInputEvent::TouchMove, host_->acked_touch_event_type());
   EXPECT_EQ(
       "GestureTapCancel GestureScrollBegin GestureScrollUpdate",
       GetInputMessageTypes(process_));
-  SendInputEventACK(WebInputEvent::GestureTapCancel,
-                    INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
-  SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
   SendInputEventACK(WebInputEvent::GestureScrollUpdate,
                     INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
 
   // Mouse drag with shift becomes pinch.
   SimulateMouseEvent(
       WebInputEvent::MouseMove, 10, 40, WebInputEvent::ShiftKey, true);
   EXPECT_EQ(WebInputEvent::TouchMove, host_->acked_touch_event_type());
   EXPECT_EQ("GesturePinchBegin",
             GetInputMessageTypes(process_));
-  SendInputEventACK(WebInputEvent::GesturePinchBegin,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
 
   SimulateMouseEvent(
       WebInputEvent::MouseMove, 10, 50, WebInputEvent::ShiftKey, true);
   EXPECT_EQ(WebInputEvent::TouchMove, host_->acked_touch_event_type());
   EXPECT_EQ("GesturePinchUpdate",
             GetInputMessageTypes(process_));
   SendInputEventACK(WebInputEvent::GesturePinchUpdate,
                     INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
@@ skipping 11 matching lines @@
   EXPECT_EQ(WebInputEvent::TouchMove, host_->acked_touch_event_type());
   EXPECT_EQ("GestureScrollUpdate",
             GetInputMessageTypes(process_));
   SendInputEventACK(WebInputEvent::GestureScrollUpdate,
                     INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
 
   SimulateMouseEvent(WebInputEvent::MouseUp, 10, 70, 0, true);
   EXPECT_EQ(WebInputEvent::TouchEnd, host_->acked_touch_event_type());
   EXPECT_EQ("GestureScrollEnd", GetInputMessageTypes(process_));
-  SendInputEventACK(WebInputEvent::GestureScrollEnd,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
 
   // Mouse move does nothing.
   SimulateMouseEvent(WebInputEvent::MouseMove, 10, 80, 0, false);
   EXPECT_EQ(0U, process_->sink().message_count());
 
   // Another mouse down continues scroll.
   SimulateMouseEvent(WebInputEvent::MouseDown, 10, 80, 0, true);
   EXPECT_EQ(WebInputEvent::TouchStart, host_->acked_touch_event_type());
   EXPECT_EQ("GestureTapDown", GetInputMessageTypes(process_));
-  SendInputEventACK(WebInputEvent::GestureTapDown,
-                    INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
 
   SimulateMouseEvent(WebInputEvent::MouseMove, 10, 100, 0, true);
   EXPECT_EQ(WebInputEvent::TouchMove, host_->acked_touch_event_type());
   EXPECT_EQ(
       "GestureTapCancel GestureScrollBegin GestureScrollUpdate",
       GetInputMessageTypes(process_));
-  SendInputEventACK(WebInputEvent::GestureTapCancel,
-                    INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
-  SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
   SendInputEventACK(WebInputEvent::GestureScrollUpdate,
                     INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
 
   // Another pinch.
   SimulateMouseEvent(
       WebInputEvent::MouseMove, 10, 110, WebInputEvent::ShiftKey, true);
   EXPECT_EQ(WebInputEvent::TouchMove, host_->acked_touch_event_type());
   EXPECT_EQ("GesturePinchBegin",
             GetInputMessageTypes(process_));
-  SendInputEventACK(WebInputEvent::GesturePinchBegin,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
 
   SimulateMouseEvent(
       WebInputEvent::MouseMove, 10, 120, WebInputEvent::ShiftKey, true);
   EXPECT_EQ(WebInputEvent::TouchMove, host_->acked_touch_event_type());
   EXPECT_EQ("GesturePinchUpdate",
             GetInputMessageTypes(process_));
   SendInputEventACK(WebInputEvent::GesturePinchUpdate,
                     INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
 
   // Turn off emulation during a pinch.
   host_->OnMessageReceived(
       ViewHostMsg_SetTouchEventEmulationEnabled(0, false, false));
   EXPECT_EQ(WebInputEvent::TouchCancel, host_->acked_touch_event_type());
   EXPECT_EQ("GesturePinchEnd GestureScrollEnd",
             GetInputMessageTypes(process_));
-  SendInputEventACK(WebInputEvent::GesturePinchEnd,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
-  SendInputEventACK(WebInputEvent::GestureScrollEnd,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
 
   // Mouse event should pass untouched.
   SimulateMouseEvent(
       WebInputEvent::MouseMove, 10, 10, WebInputEvent::ShiftKey, true);
   EXPECT_EQ("MouseMove", GetInputMessageTypes(process_));
   SendInputEventACK(WebInputEvent::MouseMove,
                     INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
 
   // Turn on emulation.
   host_->OnMessageReceived(
       ViewHostMsg_SetTouchEventEmulationEnabled(0, true, true));
   EXPECT_EQ(0U, process_->sink().message_count());
 
   // Another touch.
   SimulateMouseEvent(WebInputEvent::MouseDown, 10, 10, 0, true);
   EXPECT_EQ(WebInputEvent::TouchStart, host_->acked_touch_event_type());
   EXPECT_EQ("GestureTapDown", GetInputMessageTypes(process_));
-  SendInputEventACK(WebInputEvent::GestureTapDown,
-                    INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
 
   // Scroll.
   SimulateMouseEvent(WebInputEvent::MouseMove, 10, 30, 0, true);
   EXPECT_EQ(WebInputEvent::TouchMove, host_->acked_touch_event_type());
   EXPECT_EQ(
       "GestureTapCancel GestureScrollBegin GestureScrollUpdate",
       GetInputMessageTypes(process_));
-  SendInputEventACK(WebInputEvent::GestureTapCancel,
-                    INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
-  SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
   SendInputEventACK(WebInputEvent::GestureScrollUpdate,
                     INPUT_EVENT_ACK_STATE_CONSUMED);
 
   // Turn off emulation during a scroll.
   host_->OnMessageReceived(
       ViewHostMsg_SetTouchEventEmulationEnabled(0, false, false));
   EXPECT_EQ(WebInputEvent::TouchCancel, host_->acked_touch_event_type());
 
   EXPECT_EQ("GestureScrollEnd", GetInputMessageTypes(process_));
-  SendInputEventACK(WebInputEvent::GestureScrollEnd,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, process_->sink().message_count());
 }
 
 #define TEST_InputRouterRoutes_NOARGS(INPUTMSG) \
   TEST_F(RenderWidgetHostTest, InputRouterRoutes##INPUTMSG) { \
     host_->SetupForInputRouterTest(); \
     host_->INPUTMSG(); \
     EXPECT_TRUE(host_->mock_input_router()->send_event_called_); \
   }
 
@@ skipping 202 matching lines @@
                                     ui::LatencyInfo());
   CheckLatencyInfoComponentInMessage(
       process_, GetLatencyComponentId(), WebInputEvent::MouseMove);
   SendInputEventACK(WebInputEvent::MouseMove, INPUT_EVENT_ACK_STATE_CONSUMED);
 
   // Tests RWHI::ForwardGestureEvent().
   SimulateGestureEvent(WebInputEvent::GestureScrollBegin,
                        WebGestureEvent::Touchscreen);
   CheckLatencyInfoComponentInMessage(
       process_, GetLatencyComponentId(), WebInputEvent::GestureScrollBegin);
-  SendInputEventACK(WebInputEvent::GestureScrollBegin,
-                    INPUT_EVENT_ACK_STATE_CONSUMED);
 
   // Tests RWHI::ForwardGestureEventWithLatencyInfo().
   SimulateGestureEventWithLatencyInfo(WebInputEvent::GestureScrollUpdate,
                                       WebGestureEvent::Touchscreen,
                                       ui::LatencyInfo());
   CheckLatencyInfoComponentInMessage(
       process_, GetLatencyComponentId(), WebInputEvent::GestureScrollUpdate);
   SendInputEventACK(WebInputEvent::GestureScrollUpdate,
                     INPUT_EVENT_ACK_STATE_CONSUMED);
 
   // Tests RWHI::ForwardTouchEventWithLatencyInfo().
   PressTouchPoint(0, 1);
   SendTouchEvent();
   CheckLatencyInfoComponentInMessage(
       process_, GetLatencyComponentId(), WebInputEvent::TouchStart);
   SendInputEventACK(WebInputEvent::TouchStart, INPUT_EVENT_ACK_STATE_CONSUMED);
 }
 
 }  // namespace content