[Android] Properly filter GestureFlingCancel events

content/browser/renderer_host/render_widget_host_view_android.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 "content/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include "base/android/build_info.h"
 #include "base/basictypes.h"
@@ skipping 1668 matching lines @@
     }
   }
 
   if (overscroll_controller_ &&
       blink::WebInputEvent::isGestureEventType(input_event.type) &&
       overscroll_controller_->WillHandleGestureEvent(
           static_cast<const blink::WebGestureEvent&>(input_event))) {
     return INPUT_EVENT_ACK_STATE_CONSUMED;
   }
 
-  if (content_view_core_ &&
-      content_view_core_->FilterInputEvent(input_event))
-    return INPUT_EVENT_ACK_STATE_CONSUMED;
+  if (content_view_core_) {
+    InputEventAckState ack_result =
+      content_view_core_->FilterInputEvent(input_event);
+    if (ack_result != INPUT_EVENT_ACK_STATE_NOT_CONSUMED)
+      return ack_result;
+  }
 
   if (!host_)
     return INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
 
   if (input_event.type == blink::WebInputEvent::GestureTapDown ||
       input_event.type == blink::WebInputEvent::TouchStart) {
     GpuDataManagerImpl* gpu_data = GpuDataManagerImpl::GetInstance();
     GpuProcessHostUIShim* shim = GpuProcessHostUIShim::GetOneInstance();
     if (shim && gpu_data && accelerated_surface_route_id_ &&
         gpu_data->IsDriverBugWorkaroundActive(gpu::WAKE_UP_GPU_BEFORE_DRAWING))
@@ skipping 408 matching lines @@
   results->orientationAngle = display.RotationAsDegree();
   results->orientationType =
       RenderWidgetHostViewBase::GetOrientationTypeForMobile(display);
   gfx::DeviceDisplayInfo info;
   results->depth = info.GetBitsPerPixel();
   results->depthPerComponent = info.GetBitsPerComponent();
   results->isMonochrome = (results->depthPerComponent == 0);
 }
 
 } // namespace content