Using API key specified from js

components/copresence/public/copresence_client_delegate.h

Index: components/copresence/public/copresence_client_delegate.h
diff --git a/components/copresence/public/copresence_client_delegate.h b/components/copresence/public/copresence_client_delegate.h
index 7698aecf5c119e7a0a77a078c32f12dc0c8a0d0f..0d64063a7077a7ecc66a363eacaacb6ffd6fe4ea 100644
--- a/components/copresence/public/copresence_client_delegate.h
+++ b/components/copresence/public/copresence_client_delegate.h
@@ -16,6 +16,7 @@ class URLRequestContextGetter;
 
 namespace copresence {
 
+class DeviceFingerprint;
 class Message;
 class WhispernetClient;
 
@@ -35,8 +36,8 @@ class CopresenceClientDelegate {
       const std::vector<Message>& message) = 0;
 
   virtual net::URLRequestContextGetter* GetRequestContext() const = 0;
-
-  virtual const std::string GetPlatformVersionString() const = 0;
+  virtual const DeviceFingerprint& GetDeviceFingerprint() const = 0;
+  virtual const std::string& GetAPIKey() const = 0;
 
   virtual WhispernetClient* GetWhispernetClient() = 0;
 };