Componentize GCM Part 1: create GCM component and move some files over

google_apis/gcm/gcm_client.h

Index: google_apis/gcm/gcm_client.h
diff --git a/google_apis/gcm/gcm_client.h b/google_apis/gcm/gcm_client.h
index 28c9ef2b453d5c837285bbaca997b379ed9c0e38..c2be75ef28624cfe734c7fafd4714a4c06db9cbd 100644
--- a/google_apis/gcm/gcm_client.h
+++ b/google_apis/gcm/gcm_client.h
@@ -30,6 +30,8 @@ class URLRequestContextGetter;
 
 namespace gcm {
 
+class Encryptor;
+
 // Interface that encapsulates the network communications with the Google Cloud
 // Messaging server. This interface is not supposed to be thread-safe.
 class GCM_EXPORT GCMClient {
@@ -177,6 +179,7 @@ class GCM_EXPORT GCMClient {
       const scoped_refptr<base::SequencedTaskRunner>& blocking_task_runner,
       const scoped_refptr<net::URLRequestContextGetter>&
           url_request_context_getter,
+      scoped_ptr<Encryptor> encryptor,
       Delegate* delegate) = 0;
 
   // Loads the data from the persistent store. This will automatically kick off