Use WTF::TimeTicks to represent timestamp in Platform/Core event types

third_party/WebKit/Source/core/inspector/InspectorInputAgent.cpp

Index: third_party/WebKit/Source/core/inspector/InspectorInputAgent.cpp
diff --git a/third_party/WebKit/Source/core/inspector/InspectorInputAgent.cpp b/third_party/WebKit/Source/core/inspector/InspectorInputAgent.cpp
index 223203efa88ccbaf46cd124052b2a0d4a884766e..9c8d83a911b1326b07361812b967f26dd743921f 100644
--- a/third_party/WebKit/Source/core/inspector/InspectorInputAgent.cpp
+++ b/third_party/WebKit/Source/core/inspector/InspectorInputAgent.cpp
@@ -43,6 +43,7 @@
 #include "platform/geometry/IntRect.h"
 #include "platform/geometry/IntSize.h"
 #include "wtf/CurrentTime.h"
+#include "wtf/Time.h"
 
 namespace {
 
@@ -71,15 +72,16 @@ unsigned GetEventModifiers(int modifiers) {
 // is an estimate because these two clocks respond differently to user setting
 // time and NTP adjustments. If timestamp is empty then returns current
 // monotonic timestamp.
-double GetEventTimeStamp(const blink::protocol::Maybe<double>& timestamp) {
+TimeTicks GetEventTimeStamp(const blink::protocol::Maybe<double>& timestamp) {
   // Take a snapshot of difference between two clocks on first run and use it
   // for the duration of the application.
   static double epochToMonotonicTimeDelta =
       currentTime() - monotonicallyIncreasingTime();
-  if (timestamp.isJust())
-    return timestamp.fromJust() - epochToMonotonicTimeDelta;
-
-  return monotonicallyIncreasingTime();
+  if (timestamp.isJust()) {
+    double ticksInSeconds = timestamp.fromJust() - epochToMonotonicTimeDelta;
+    return TimeTicks() + TimeDelta::FromSecondsD(ticksInSeconds);

[esprehn, 2016/12/06 22:14:19]

I'm not a fan of the API requiring all this math all over :/ Why is there no
TimeTicks::FromSeconds() ?

+  }
+  return TimeTicks::Now();
 }
 
 class SyntheticInspectorTouchPoint : public blink::PlatformTouchPoint {
@@ -106,7 +108,7 @@ class SyntheticInspectorTouchEvent : public blink::PlatformTouchEvent {
  public:
   SyntheticInspectorTouchEvent(const blink::PlatformEvent::EventType type,
                                unsigned modifiers,
-                               double timestamp) {
+                               TimeTicks timestamp) {
     m_type = type;
     m_modifiers = modifiers;
     m_timestamp = timestamp;