Fix tracing 64-bit to 32-bit truncations

base/debug/trace_event.h

Index: base/debug/trace_event.h
diff --git a/base/debug/trace_event.h b/base/debug/trace_event.h
index 686bd38790cbe561a418f25ec2f4d4bc2476b383..dcb332d8796f12d1a4fc3876bcd29c3240f11107 100644
--- a/base/debug/trace_event.h
+++ b/base/debug/trace_event.h
@@ -1003,7 +1003,7 @@ class TraceID {
    public:
     explicit DontMangle(const void* id)
         : data_(static_cast<unsigned long long>(
-              reinterpret_cast<unsigned long>(id))) {}
+              reinterpret_cast<uintptr_t>(id))) {}
     explicit DontMangle(unsigned long long id) : data_(id) {}
     explicit DontMangle(unsigned long id) : data_(id) {}
     explicit DontMangle(unsigned int id) : data_(id) {}
@@ -1045,10 +1045,9 @@ class TraceID {
    private:
     unsigned long long data_;
   };
-
   TraceID(const void* id, unsigned char* flags)
       : data_(static_cast<unsigned long long>(
-              reinterpret_cast<unsigned long>(id))) {
+              reinterpret_cast<uintptr_t>(id))) {
     *flags |= TRACE_EVENT_FLAG_MANGLE_ID;
   }
   TraceID(ForceMangle id, unsigned char* flags) : data_(id.data()) {