Track plugin input event latency

content/renderer/pepper/pepper_graphics_2d_host.h

Index: content/renderer/pepper/pepper_graphics_2d_host.h
diff --git a/content/renderer/pepper/pepper_graphics_2d_host.h b/content/renderer/pepper/pepper_graphics_2d_host.h
index 71eb59f4e229efac6202dc6cc83ecb2c098ea947..25df4d179a917c47256031c3ea1a8d1eeca4fa78 100644
--- a/content/renderer/pepper/pepper_graphics_2d_host.h
+++ b/content/renderer/pepper/pepper_graphics_2d_host.h
@@ -15,6 +15,7 @@
 #include "ppapi/host/host_message_context.h"
 #include "ppapi/host/resource_host.h"
 #include "third_party/WebKit/public/platform/WebCanvas.h"
+#include "ui/events/latency_info.h"
 #include "ui/gfx/point.h"
 #include "ui/gfx/size.h"
 
@@ -105,7 +106,8 @@ class CONTENT_EXPORT PepperGraphics2DHost
                           const PP_Point& amount);
   int32_t OnHostMsgReplaceContents(ppapi::host::HostMessageContext* context,
                                    const ppapi::HostResource& image_data);
-  int32_t OnHostMsgFlush(ppapi::host::HostMessageContext* context);
+  int32_t OnHostMsgFlush(ppapi::host::HostMessageContext* context,
+                         const std::vector<ui::LatencyInfo>& latency_info);
   int32_t OnHostMsgSetScale(ppapi::host::HostMessageContext* context,
                             float scale);
   int32_t OnHostMsgReadImageData(ppapi::host::HostMessageContext* context,