Integrate UI with authentication flow.

blimp/client/core/blimp_client_context_impl.h

Index: blimp/client/core/blimp_client_context_impl.h
diff --git a/blimp/client/core/blimp_client_context_impl.h b/blimp/client/core/blimp_client_context_impl.h
index 0748e23d3d9f43e276c35cf1dbefa58e5781586b..9671b33772e3c9326a2c962143aee2d57a019246 100644
--- a/blimp/client/core/blimp_client_context_impl.h
+++ b/blimp/client/core/blimp_client_context_impl.h
@@ -12,6 +12,7 @@
 #include "base/memory/weak_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread.h"
+#include "blimp/client/core/blimp_client_context_internal.h"

[David Trainor- moved to gerrit, 2016/08/29 05:12:24]

Is this used here?

[xingliu, 2016/08/30 04:47:42]

I first expose the identity source in the base class, later move to android
layer, now it's moved back to here.

 #include "blimp/client/core/session/client_network_components.h"
 #include "blimp/client/core/session/identity_source.h"
 #include "blimp/client/core/session/network_event_observer.h"
@@ -57,6 +58,13 @@ class BlimpClientContextImpl : public BlimpClientContext,
   // the AssignmentSource.
   virtual GURL GetAssignerURL();
 
+  // Create IdentitySource which provides user sign in states and OAuth2 token
+  // service.
+  void CreateIdentitySource();
+
+  // Provide OAuth2 token and propagate account sign in states change.
+  std::unique_ptr<IdentitySource> identity_source_;
+
  private:
   // Connect to assignment source with OAuth2 token to get an assignment.
   virtual void ConnectToAssignmentSource(const std::string& client_auth_token);
@@ -91,9 +99,6 @@ class BlimpClientContextImpl : public BlimpClientContext,
 
   std::unique_ptr<ThreadPipeManager> thread_pipe_manager_;
 
-  // Provide OAuth2 token and propagate account sign in states change.
-  std::unique_ptr<IdentitySource> identity_source_;
-
   base::WeakPtrFactory<BlimpClientContextImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BlimpClientContextImpl);