mapCompiledToUncompiledPlayerMethodNames_() {
    // In compiled mode, UI tries to access player methods by their internal
    // renamed names, but the proxy object doesn't know about those.  See
    // https://github.com/shaka-project/shaka-player/issues/2130 for details.
    const methodsToNames = new Map();
    this.iterateOverPlayerMethods_((name, method) => {
      if (methodsToNames.has(method)) {
        // If two method names, point to the same method, add them to the
        // map as aliases of each other.
        const name2 = methodsToNames.get(method);
        // Assumes that the compiled name is shorter
        if (name.length < name2.length) {
          this.compiledToExternNames_.set(name, name2);
        } else {
          this.compiledToExternNames_.set(name2, name);
        }
      } else {
        methodsToNames.set(method, name);
      }
    });
  }
Maps compiled to uncompiled player names so we can figure out
which method to call in compiled build, while casting.
@private