Move impl of identity.GetProfileUserInfo() extension API to its own file

chrome/browser/extensions/api/identity/identity_api.h

Index: chrome/browser/extensions/api/identity/identity_api.h
diff --git a/chrome/browser/extensions/api/identity/identity_api.h b/chrome/browser/extensions/api/identity/identity_api.h
index b39ae4152c2d3a5f969760db26ee0ecb05255f2b..66599fc924ce67065631de2186a9281ee5fdf9a0 100644
--- a/chrome/browser/extensions/api/identity/identity_api.h
+++ b/chrome/browser/extensions/api/identity/identity_api.h
@@ -18,6 +18,7 @@
 #include "build/build_config.h"
 #include "chrome/browser/extensions/api/identity/extension_token_key.h"
 #include "chrome/browser/extensions/api/identity/gaia_web_auth_flow.h"
+#include "chrome/browser/extensions/api/identity/identity_get_profile_user_info_function.h"
 #include "chrome/browser/extensions/api/identity/identity_launch_web_auth_flow_function.h"
 #include "chrome/browser/extensions/api/identity/identity_mint_queue.h"
 #include "chrome/browser/extensions/api/identity/identity_remove_cached_auth_token_function.h"
@@ -291,21 +292,6 @@ class IdentityGetAuthTokenFunction : public ChromeAsyncExtensionFunction,
   std::unique_ptr<IdentitySigninFlow> signin_flow_;
 };
 
-class IdentityGetProfileUserInfoFunction
-    : public ChromeUIThreadExtensionFunction {
- public:
-  DECLARE_EXTENSION_FUNCTION("identity.getProfileUserInfo",
-                             IDENTITY_GETPROFILEUSERINFO);
-
-  IdentityGetProfileUserInfoFunction();
-
- private:
-  ~IdentityGetProfileUserInfoFunction() override;
-
-  // UIThreadExtensionFunction implementation.
-  ExtensionFunction::ResponseAction Run() override;
-};
-
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_