[jumbo] Avoid having two TimeTicksFromSecondsD

With the changes to port from wtf/time.h to base/time/time.h
the core test build target ended up with two TimeTicksFromSecondsD
which clashed in some jumbo builds. This patch is a short
term fix that inlines one of them.

A long term fix would imho be to add a TimeTick::FromSecondsD
method.

Bug: 919383
Change-Id: I5ff65f2a8bcfb95fc0163453793f7c290bbd9e52
Reviewed-on: https://chromium-review.googlesource.com/c/1489196
Auto-Submit: Daniel Bratell <bratell@opera.com>
Commit-Queue: Sergio Villar <svillar@igalia.com>
Reviewed-by: Sergio Villar <svillar@igalia.com>
Cr-Commit-Position: refs/heads/master@{#635974}

third_party/blink/renderer/core/timing/performance_test.cc

@@ -20,12 +20,6 @@
 #include "third_party/blink/renderer/core/timing/performance_observer_init.h"
 #include "third_party/blink/renderer/platform/loader/fetch/resource_response.h"
 
-namespace {
-base::TimeTicks TimeTicksFromSecondsD(double seconds) {
-  return base::TimeTicks() + base::TimeDelta::FromSecondsD(seconds);
-}
-}  // namespace
-
 namespace blink {
 
 class TestPerformance : public Performance {
@@ -128,9 +122,10 @@ TEST_F(PerformanceTest, AddLongTaskTiming) {
   SubTaskAttribution::EntriesVector sub_task_attributions;
 
   // Add a long task entry, but no observer registered.
-  base_->AddLongTaskTiming(TimeTicksFromSecondsD(1234),
-                           TimeTicksFromSecondsD(5678), "same-origin",
-                           "www.foo.com/bar", "", "", sub_task_attributions);
+  base_->AddLongTaskTiming(
+      base::TimeTicks() + base::TimeDelta::FromSecondsD(1234),
+      base::TimeTicks() + base::TimeDelta::FromSecondsD(5678), "same-origin",
+      "www.foo.com/bar", "", "", sub_task_attributions);
   EXPECT_FALSE(base_->HasPerformanceObserverFor(PerformanceEntry::kLongTask));
   EXPECT_EQ(0, NumPerformanceEntriesInObserver());  // has no effect
 
@@ -144,9 +139,10 @@ TEST_F(PerformanceTest, AddLongTaskTiming) {
 
   EXPECT_TRUE(base_->HasPerformanceObserverFor(PerformanceEntry::kLongTask));
   // Add a long task entry
-  base_->AddLongTaskTiming(TimeTicksFromSecondsD(1234),
-                           TimeTicksFromSecondsD(5678), "same-origin",
-                           "www.foo.com/bar", "", "", sub_task_attributions);
+  base_->AddLongTaskTiming(
+      base::TimeTicks() + base::TimeDelta::FromSecondsD(1234),
+      base::TimeTicks() + base::TimeDelta::FromSecondsD(5678), "same-origin",
+      "www.foo.com/bar", "", "", sub_task_attributions);
   EXPECT_EQ(1, NumPerformanceEntriesInObserver());  // added an entry
 }