Merged all PointerToId functions into TraceHelper::PointerToString.

third_party/WebKit/Source/platform/scheduler/renderer/task_queue_throttler.cc

Index: third_party/WebKit/Source/platform/scheduler/renderer/task_queue_throttler.cc
diff --git a/third_party/WebKit/Source/platform/scheduler/renderer/task_queue_throttler.cc b/third_party/WebKit/Source/platform/scheduler/renderer/task_queue_throttler.cc
index 1c3cd00bfe7a0303b2cde56241e11283888b371b..9223bb9625cb6ceb4305e8b195473e39fe554c9e 100644
--- a/third_party/WebKit/Source/platform/scheduler/renderer/task_queue_throttler.cc
+++ b/third_party/WebKit/Source/platform/scheduler/renderer/task_queue_throttler.cc
@@ -6,13 +6,12 @@
 
 #include <cstdint>
 
-#include "base/format_macros.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/optional.h"
-#include "base/strings/stringprintf.h"
 #include "platform/WebFrameScheduler.h"
 #include "platform/scheduler/base/real_time_domain.h"
+#include "platform/scheduler/base/trace_helper.h"
 #include "platform/scheduler/child/scheduler_tqm_delegate.h"
 #include "platform/scheduler/renderer/budget_pool.h"
 #include "platform/scheduler/renderer/renderer_scheduler_impl.h"
@@ -64,12 +63,6 @@ base::Optional<T> Max(const base::Optional<T>& a, const base::Optional<T>& b) {
   return std::max(a.value(), b.value());
 }
 
-std::string PointerToId(void* pointer) {
-  return base::StringPrintf(
-      "0x%" PRIx64,
-      static_cast<uint64_t>(reinterpret_cast<uintptr_t>(pointer)));
-}
-
 }  // namespace
 
 TaskQueueThrottler::TaskQueueThrottler(
@@ -441,7 +434,8 @@ void TaskQueueThrottler::AsValueInto(base::trace_event::TracedValue* state,
 
   state->BeginDictionary("queue_details");
   for (const auto& map_entry : queue_details_) {
-    state->BeginDictionaryWithCopiedName(PointerToId(map_entry.first));
+    state->BeginDictionaryWithCopiedName(
+        trace_helper::PointerToString(map_entry.first));
 
     state->SetInteger("throttling_ref_count",
                       map_entry.second.throttling_ref_count);