Use scroll-boundary-behavior to control overscroll-refresh/glow on android.

content/common/input_messages.h

Index: content/common/input_messages.h
diff --git a/content/common/input_messages.h b/content/common/input_messages.h
index 142f8db464884f6ce285f55ef59bbe43c499731c..b830dd36e876dc5ae8e52c5d501f97febd092bd0 100644
--- a/content/common/input_messages.h
+++ b/content/common/input_messages.h
@@ -8,6 +8,7 @@
 
 #include "base/strings/string16.h"
 #include "build/build_config.h"
+#include "cc/input/scroll_boundary_behavior.h"
 #include "cc/input/touch_action.h"
 #include "content/common/content_export.h"
 #include "content/common/content_param_traits.h"
@@ -81,12 +82,22 @@ IPC_ENUM_TRAITS_MAX_VALUE(
     blink::WebGestureEvent::InertialPhaseState::kLastPhase)
 IPC_ENUM_TRAITS_MAX_VALUE(blink::WebTouchPoint::State,
                           blink::WebTouchPoint::State::kStateMax)
+IPC_ENUM_TRAITS_MAX_VALUE(
+    cc::ScrollBoundaryBehavior::ScrollBoundaryBehaviorType,
+    cc::ScrollBoundaryBehavior::ScrollBoundaryBehaviorType::
+        kScrollBoundaryBehaviorTypeContain)

[dtapuska, 2017/08/22 14:51:04]

Can you add a max value in the enum value set? It catches the problem when
someone re-orders the values and then this code borks because of it.

[sunyunjia, 2017/08/22 23:55:37]

Done.

 
 IPC_STRUCT_TRAITS_BEGIN(ui::DidOverscrollParams)
   IPC_STRUCT_TRAITS_MEMBER(accumulated_overscroll)
   IPC_STRUCT_TRAITS_MEMBER(latest_overscroll_delta)
   IPC_STRUCT_TRAITS_MEMBER(current_fling_velocity)
   IPC_STRUCT_TRAITS_MEMBER(causal_event_viewport_point)
+  IPC_STRUCT_TRAITS_MEMBER(scroll_boundary_behavior)
+IPC_STRUCT_TRAITS_END()
+
+IPC_STRUCT_TRAITS_BEGIN(cc::ScrollBoundaryBehavior)
+  IPC_STRUCT_TRAITS_MEMBER(x)
+  IPC_STRUCT_TRAITS_MEMBER(y)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::EditCommand)