Reland: Add Scoped Context Info (Isolate) to V8 Traces

include/v8-platform.h

Index: include/v8-platform.h
diff --git a/include/v8-platform.h b/include/v8-platform.h
index 11f8d51f02573e1f3ea32a2efba21635ffa25e6d..f5f56641b63017d3862d575366da4994b3dd458c 100644
--- a/include/v8-platform.h
+++ b/include/v8-platform.h
@@ -152,6 +152,21 @@ class Platform {
    */
   virtual uint64_t AddTraceEvent(
       char phase, const uint8_t* category_enabled_flag, const char* name,
+      const char* scope, uint64_t id, uint64_t bind_id, int32_t num_args,
+      const char** arg_names, const uint8_t* arg_types,
+      const uint64_t* arg_values, unsigned int flags) {
+    return AddTraceEvent(phase, category_enabled_flag, name, id, bind_id,
+                         num_args, arg_names, arg_types, arg_values, flags);
+  }
+
+  /**
+   * This method will soon be depreacted in favor of the version with the 'const
+   * char* scope' parameter. If you do not already override this method, please
+   * implement the other version instead.
+   */
+  // TODO(fmeawad): Remove once all embedders implement the scope version.
+  virtual uint64_t AddTraceEvent(
+      char phase, const uint8_t* category_enabled_flag, const char* name,
       uint64_t id, uint64_t bind_id, int32_t num_args, const char** arg_names,
       const uint8_t* arg_types, const uint64_t* arg_values,
       unsigned int flags) {