Update Xray for PNaCl

native_client_sdk/src/libraries/xray/xray_priv.h

Index: native_client_sdk/src/libraries/xray/xray_priv.h
diff --git a/native_client_sdk/src/libraries/xray/xray_priv.h b/native_client_sdk/src/libraries/xray/xray_priv.h
index ae4de0cda9c0d1a0ace6558adce063c9af31aad6..53b9169f9802c201a8b07ca0a5f88f36e6e44812 100644
--- a/native_client_sdk/src/libraries/xray/xray_priv.h
+++ b/native_client_sdk/src/libraries/xray/xray_priv.h
@@ -182,6 +182,23 @@ XRAY_NO_INSTRUMENT void XRayEnableCapture(struct XRayTraceCapture* capture);
 XRAY_NO_INSTRUMENT void XRayLoadMapfile(
     struct XRayTraceCapture* capture, const char* mapfilename);
 
+struct XRayTimestampPair {
+  uint64_t xray;   /* internal xray timestamp */
+  int64_t pepper;  /* corresponding timestamp from PPAPI interface */
+};
+
+#ifndef XRAY_DISABLE_BROWSER_INTEGRATION
+XRAY_NO_INSTRUMENT void XRayGetTSC(uint64_t* tsc);
+XRAY_NO_INSTRUMENT int32_t XRayGetSavedThreadID(
+    struct XRayTraceCapture* capture);
+XRAY_NO_INSTRUMENT struct XRayTimestampPair XRayFrameGetStartTimestampPair(
+    struct XRayTraceCapture* capture, int frame);
+XRAY_NO_INSTRUMENT struct XRayTimestampPair XRayFrameGetEndTimestampPair(
+    struct XRayTraceCapture* capture, int frame);
+XRAY_NO_INSTRUMENT struct XRayTimestampPair XRayGenerateTimestampsNow(void);
+#endif
+
+
 #endif  /* defined(XRAY) */
 
 #ifdef __cplusplus