Expose synthetic delays through the GPU benchmarking extension

content/common/view_messages.h

Index: content/common/view_messages.h
diff --git a/content/common/view_messages.h b/content/common/view_messages.h
index df630d3e0c5b514d1f7ae2031fc753accd39a4cb..7fadd38de5890638f6b2ac9fbc2b07de2d6b31ce 100644
--- a/content/common/view_messages.h
+++ b/content/common/view_messages.h
@@ -5,6 +5,7 @@
 // IPC messages for page rendering.
 // Multiply-included message file, hence no include guard.
 
+#include "base/debug/trace_event_synthetic_delay.h"
 #include "base/memory/shared_memory.h"
 #include "base/process/process.h"
 #include "base/strings/string16.h"
@@ -1391,6 +1392,8 @@ IPC_MESSAGE_ROUTED2(ViewMsg_ReclaimCompositorResources,
 IPC_MESSAGE_ROUTED1(ViewMsg_Snapshot,
                     gfx::Rect /* src_subrect */)
 
+IPC_MESSAGE_ROUTED0(ViewMsg_ConfigureSyntheticDelayAck)
+
 // -----------------------------------------------------------------------------
 // Messages sent from the renderer to the browser.
 
@@ -1688,6 +1691,15 @@ IPC_STRUCT_END()
 IPC_MESSAGE_ROUTED1(ViewHostMsg_BeginPinch,
                     ViewHostMsg_BeginPinch_Params /* params */)
 
+IPC_STRUCT_BEGIN(ViewHostMsg_ConfigureSyntheticDelay_Params)
+  IPC_STRUCT_MEMBER(std::string, name)
+  IPC_STRUCT_MEMBER(base::TimeDelta, target_duration)
+  IPC_STRUCT_MEMBER(int32, mode)
+IPC_STRUCT_END()
+
+IPC_MESSAGE_ROUTED1(ViewHostMsg_ConfigureSyntheticDelay,
+                    ViewHostMsg_ConfigureSyntheticDelay_Params /* params */)
+
 IPC_MESSAGE_ROUTED0(ViewHostMsg_Focus)
 IPC_MESSAGE_ROUTED0(ViewHostMsg_Blur)