Deletes the now-unused addTrace methods that don't accept user-supplied timestamps.

content/child/blink_platform_impl.cc

Index: content/child/blink_platform_impl.cc
diff --git a/content/child/blink_platform_impl.cc b/content/child/blink_platform_impl.cc
index a8d488ac58a3d6fc457beb259064d0852f8dddf7..405e2f682eb8db58278ee34d20eb4ea11250ff0b 100644
--- a/content/child/blink_platform_impl.cc
+++ b/content/child/blink_platform_impl.cc
@@ -665,38 +665,6 @@ blink::Platform::TraceEventHandle BlinkPlatformImpl::addTraceEvent(
   return result;
 }
 
-blink::Platform::TraceEventHandle BlinkPlatformImpl::addTraceEvent(
-    char phase,
-    const unsigned char* category_group_enabled,
-    const char* name,
-    unsigned long long id,
-    int num_args,
-    const char** arg_names,
-    const unsigned char* arg_types,
-    const unsigned long long* arg_values,
-    unsigned char flags) {
-  return addTraceEvent(phase, category_group_enabled, name, id,
-                       monotonicallyIncreasingTime(),
-                       num_args, arg_names, arg_types, arg_values, flags);
-}
-
-blink::Platform::TraceEventHandle BlinkPlatformImpl::addTraceEvent(
-    char phase,
-    const unsigned char* category_group_enabled,
-    const char* name,
-    unsigned long long id,
-    int num_args,
-    const char** arg_names,
-    const unsigned char* arg_types,
-    const unsigned long long* arg_values,
-    const blink::WebConvertableToTraceFormat* convertable_values,
-    unsigned char flags) {
-  return addTraceEvent(phase, category_group_enabled, name, id,
-                       monotonicallyIncreasingTime(),
-                       num_args, arg_names, arg_types, arg_values,
-                       convertable_values, flags);
-}
-
 void BlinkPlatformImpl::updateTraceEventDuration(
     const unsigned char* category_group_enabled,
     const char* name,