Using API key specified from js

chrome/browser/extensions/api/copresence/copresence_api.h

Index: chrome/browser/extensions/api/copresence/copresence_api.h
diff --git a/chrome/browser/extensions/api/copresence/copresence_api.h b/chrome/browser/extensions/api/copresence/copresence_api.h
index 1f631a3bbe604085e9deaf1725e6e081725d38f9..c6f24e14066286407e10f71beff6ed09b3f0516a 100644
--- a/chrome/browser/extensions/api/copresence/copresence_api.h
+++ b/chrome/browser/extensions/api/copresence/copresence_api.h
@@ -55,7 +55,9 @@ class CopresenceService : public BrowserContextKeyedAPI,
       const std::string& subscription_id,
       const std::vector<copresence::Message>& message) OVERRIDE;
   virtual net::URLRequestContextGetter* GetRequestContext() const OVERRIDE;
-  virtual const std::string GetPlatformVersionString() const OVERRIDE;
+  virtual const copresence::DeviceFingerprint& GetDeviceFingerprint() const
+      OVERRIDE;
+  virtual const std::string& GetAPIKey() const OVERRIDE;
   virtual copresence::WhispernetClient* GetWhispernetClient() OVERRIDE;
 
   // BrowserContextKeyedAPI implementation.
@@ -65,6 +67,9 @@ class CopresenceService : public BrowserContextKeyedAPI,
   std::map<std::string, std::string> apps_by_subscription_id_;
 
   content::BrowserContext* const browser_context_;
+  copresence::DeviceFingerprint device_fingerprint_;
+  std::string api_key_;
+
   scoped_ptr<copresence::CopresenceClient> client_;
   scoped_ptr<copresence::WhispernetClient> whispernet_client_;