Blimp OAuth2 token retreival on application start up.

chrome/browser/android/blimp/chrome_blimp_client_context_delegate.h

Index: chrome/browser/android/blimp/chrome_blimp_client_context_delegate.h
diff --git a/chrome/browser/android/blimp/chrome_blimp_client_context_delegate.h b/chrome/browser/android/blimp/chrome_blimp_client_context_delegate.h
index 4e37ab6041ebae8d50c36620a935c7c426da7eb0..95f38ae86742700b2c6c364eba8bcc29ffc5314f 100644
--- a/chrome/browser/android/blimp/chrome_blimp_client_context_delegate.h
+++ b/chrome/browser/android/blimp/chrome_blimp_client_context_delegate.h
@@ -5,9 +5,12 @@
 #ifndef CHROME_BROWSER_ANDROID_BLIMP_CHROME_BLIMP_CLIENT_CONTEXT_DELEGATE_H_
 #define CHROME_BROWSER_ANDROID_BLIMP_CHROME_BLIMP_CLIENT_CONTEXT_DELEGATE_H_
 
+#include <memory>
+
 #include "base/macros.h"
 #include "blimp/client/public/blimp_client_context_delegate.h"
 
+class IdentityProvider;
 class Profile;
 
 namespace blimp {
@@ -35,6 +38,10 @@ class ChromeBlimpClientContextDelegate
       blimp::client::AssignmentRequestResult result,
       const blimp::client::Assignment& assignment) override;
 
+  std::unique_ptr<IdentityProvider> CreateIdentityProvider() override;

[nyquist, 2016/08/12 05:47:05]

No empty line before this or the next method, as they're part of the
BlimpClientContextDelegate implementation.

[xingliu, 2016/08/12 17:58:28]

Done.

+
+  void OnError(BlimpClientContextDelegate::BlimpError error) override;
+
  private:
   // The profile this delegate is used for.
   Profile* profile_;