Pass gesture detector config type when enabling touch emulator.

content/browser/renderer_host/render_widget_host_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 
 #include <deque>
 #include <list>
 #include <map>
@@ skipping 21 matching lines @@
 #include "content/browser/renderer_host/render_widget_host_latency_tracker.h"
 #include "content/common/input/input_event_ack_state.h"
 #include "content/common/input/synthetic_gesture_packet.h"
 #include "content/common/view_message_enums.h"
 #include "content/public/browser/readback_types.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/common/page_zoom.h"
 #include "ipc/ipc_listener.h"
 #include "ui/base/ime/text_input_mode.h"
 #include "ui/base/ime/text_input_type.h"
+#include "ui/events/gesture_detection/gesture_provider_config_helper.h"
 #include "ui/events/latency_info.h"
 #include "ui/gfx/native_widget_types.h"
 
 struct AcceleratedSurfaceMsg_BufferPresented_Params;
 struct ViewHostMsg_BeginSmoothScroll_Params;
 struct ViewHostMsg_SelectionBounds_Params;
 struct ViewHostMsg_TextInputState_Params;
 struct ViewHostMsg_UpdateRect_Params;
 struct ViewMsg_Resize_Params;
 
@@ skipping 211 matching lines @@
       const blink::WebTouchEvent& touch_event,
       const ui::LatencyInfo& ui_latency);
   void ForwardMouseEventWithLatencyInfo(
       const blink::WebMouseEvent& mouse_event,
       const ui::LatencyInfo& ui_latency);
   void ForwardWheelEventWithLatencyInfo(
       const blink::WebMouseWheelEvent& wheel_event,
       const ui::LatencyInfo& ui_latency);
 
   // Enables/disables touch emulation using mouse event. See TouchEmulator.
-  void SetTouchEventEmulationEnabled(bool enabled);
+  void SetTouchEventEmulationEnabled(
+      bool enabled, ui::GestureProviderConfigType config_type);

[jdduke (slow), 2015/01/14 15:54:17]

This looks fine, I guess the alternative is |DisableTouchEventEmulation()| and
|EnableTouchEventEmulation(config_type)|, but maybe that's not any better.

[dgozman, 2015/01/15 11:07:11]

Yeah, I considered this and decided it's not worth splitting.

 
   // TouchEmulatorClient implementation.
   void ForwardGestureEvent(
       const blink::WebGestureEvent& gesture_event) override;
   void ForwardEmulatedTouchEvent(
       const blink::WebTouchEvent& touch_event) override;
   void SetCursor(const WebCursor& cursor) override;
   void ShowContextMenuAtPoint(const gfx::Point& point) override;
 
   // Queues a synthetic gesture for testing purposes.  Invokes the on_complete
@@ skipping 540 matching lines @@
   PendingSnapshotMap pending_browser_snapshots_;
 
   base::WeakPtrFactory<RenderWidgetHostImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_