[DevTools] Send ack early when paused in mouse move to keep events coming.

content/renderer/render_widget.h

Index: content/renderer/render_widget.h
diff --git a/content/renderer/render_widget.h b/content/renderer/render_widget.h
index 06f25e7b1db2e850dd2f2cef59ab8961945d5d31..e1d73cb03fd4a54ca83ceb720c9a2390f0b8b7dc 100644
--- a/content/renderer/render_widget.h
+++ b/content/renderer/render_widget.h
@@ -24,6 +24,7 @@
 #include "ipc/ipc_sender.h"
 #include "third_party/WebKit/public/platform/WebRect.h"
 #include "third_party/WebKit/public/web/WebCompositionUnderline.h"
+#include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "third_party/WebKit/public/web/WebPopupType.h"
 #include "third_party/WebKit/public/web/WebTextDirection.h"
 #include "third_party/WebKit/public/web/WebTextInputInfo.h"
@@ -52,7 +53,6 @@ class SyncMessage;
 namespace blink {
 struct WebDeviceEmulationParams;
 class WebGestureEvent;
-class WebInputEvent;
 class WebKeyboardEvent;
 class WebMouseEvent;
 class WebTouchEvent;
@@ -190,6 +190,14 @@ class CONTENT_EXPORT RenderWidget
   virtual void InstrumentDidCancelFrame() {}
   virtual void InstrumentWillComposite() {}
 
+  // When paused in debugger, we send ack for mouse event early. This ensures
+  // that we continue receiving mouse moves and pass them to debugger.
+  bool SendAckForCurrentMouseMove();

[pfeldman, 2014/05/18 06:09:40]

SendAckForMouseMoveFromDebugger?

[dgozman, 2014/05/19 09:59:23]

Done.

+
+  // When resumed from pause in debugger while handling mouse move,
+  // we should not send an extra ack (see SendAckForCurrentMouseMove).
+  void IgnoreAckForCurrentMouseMove();

[pfeldman, 2014/05/18 06:09:40]

ditto

[dgozman, 2014/05/19 09:59:23]

Done.

+
   bool UsingSynchronousRendererCompositor() const;
 
   // ScreenMetricsEmulator class manages screen emulation inside a render
@@ -575,8 +583,11 @@ class CONTENT_EXPORT RenderWidget
   // Are we currently handling an ime event?
   bool handling_ime_event_;
 
-  // Are we currently handling a touchstart event?
-  bool handling_touchstart_event_;
+  // Type of event we are currently handling.
+  blink::WebInputEvent::Type handling_event_type_;
+
+  // Whether we should not sent ack for current mouse move.
+  bool ignore_ack_for_current_mouse_move_;
 
   // True if we have requested this widget be closed.  No more messages will
   // be sent, except for a Close.