Support getting and deleting token for Instance ID.

google_apis/gcm/engine/unregistration_request.cc

Index: google_apis/gcm/engine/unregistration_request.cc
diff --git a/google_apis/gcm/engine/unregistration_request.cc b/google_apis/gcm/engine/unregistration_request.cc
index 9b337786f3e8a9c985fffd4206e242eeeb6566de..7bb5ae886863c05f43e71e4c0e5ee5f64351a2d6 100644
--- a/google_apis/gcm/engine/unregistration_request.cc
+++ b/google_apis/gcm/engine/unregistration_request.cc
@@ -35,6 +35,12 @@ const char kUnregistrationCallerKey[] = "gcm_unreg_caller";
 // the application.
 const char kUnregistrationCallerValue[] = "false";
 
+// Request keys specific to InstanceID's GetToken request.
+const char kGMSVersionKey[] = "gmsv";
+const char kInstanceIDKey[] = "appid";
+const char kSenderKey[] = "sender";
+const char kScopeKey[] = "scope";
+
 // Response constants.
 const char kDeletedPrefix[] = "deleted=";
 const char kErrorPrefix[] = "Error=";
@@ -98,26 +104,66 @@ UnregistrationRequest::Status ParseFetcherResponse(
 
 }  // namespace
 
-UnregistrationRequest::RequestInfo::RequestInfo(
-    uint64 android_id,
-    uint64 security_token,
-    const std::string& app_id)
-    : android_id(android_id),
-      security_token(security_token),
-      app_id(app_id) {
-}
+UnregistrationRequest::RequestInfo::RequestInfo() {}
 
 UnregistrationRequest::RequestInfo::~RequestInfo() {}
 
+void UnregistrationRequest::RequestInfo::BuildRequestHeaders(
+    std::string* extra_headers) {
+  net::HttpRequestHeaders headers;
+  headers.SetHeader(
+      net::HttpRequestHeaders::kAuthorization,
+      std::string(kLoginHeader) + " " +
+          base::Uint64ToString(android_id_) + ":" +
+          base::Uint64ToString(security_token_));
+  headers.SetHeader(kAppIdKey, app_id_);
+  *extra_headers = headers.ToString();
+}
+
+void UnregistrationRequest::RequestInfo::BuildRequestBody(std::string* body){
+  DCHECK(android_id_ != 0UL && security_token_ != 0UL);
+
+  BuildFormEncoding(kAppIdKey, app_id_, body);
+  BuildFormEncoding(kDeviceIdKey, base::Uint64ToString(android_id_), body);
+  BuildFormEncoding(kDeleteKey, kDeleteValue, body);
+}
+
+UnregistrationRequest::GCMRequestInfo::GCMRequestInfo() {}
+
+UnregistrationRequest::GCMRequestInfo::~GCMRequestInfo() {}
+
+void UnregistrationRequest::GCMRequestInfo::BuildRequestBody(std::string* body){
+  RequestInfo::BuildRequestBody(body);
+
+  BuildFormEncoding(kUnregistrationCallerKey, kUnregistrationCallerValue, body);
+}
+
+UnregistrationRequest::InstanceIDRequestInfo::InstanceIDRequestInfo() {}
+
+UnregistrationRequest::InstanceIDRequestInfo::~InstanceIDRequestInfo() {}
+
+void UnregistrationRequest::InstanceIDRequestInfo::BuildRequestBody(
+    std::string* body){
+  DCHECK(!instance_id_.empty() && !authorized_entity_.empty() &&
+         !scope_.empty());
+
+  RequestInfo::BuildRequestBody(body);
+
+  BuildFormEncoding(kGMSVersionKey, chrome_version_, body);
+  BuildFormEncoding(kInstanceIDKey, instance_id_, body);
+  BuildFormEncoding(kSenderKey, authorized_entity_, body);
+  BuildFormEncoding(kScopeKey, scope_, body);
+}
+
 UnregistrationRequest::UnregistrationRequest(
     const GURL& registration_url,
-    const RequestInfo& request_info,
+    scoped_ptr<RequestInfo> request_info,
     const net::BackoffEntry::Policy& backoff_policy,
     const UnregistrationCallback& callback,
     scoped_refptr<net::URLRequestContextGetter> request_context_getter,
     GCMStatsRecorder* recorder)
     : callback_(callback),
-      request_info_(request_info),
+      request_info_(request_info.Pass()),
       registration_url_(registration_url),
       backoff_entry_(&backoff_policy),
       request_context_getter_(request_context_getter),
@@ -129,36 +175,24 @@ UnregistrationRequest::~UnregistrationRequest() {}
 
 void UnregistrationRequest::Start() {
   DCHECK(!callback_.is_null());
-  DCHECK(request_info_.android_id != 0UL);
-  DCHECK(request_info_.security_token != 0UL);
   DCHECK(!url_fetcher_.get());
 
   url_fetcher_ =
       net::URLFetcher::Create(registration_url_, net::URLFetcher::POST, this);
   url_fetcher_->SetRequestContext(request_context_getter_.get());
 
-  std::string android_id = base::Uint64ToString(request_info_.android_id);
-  std::string auth_header =
-      std::string(kLoginHeader) + " " + android_id + ":" +
-      base::Uint64ToString(request_info_.security_token);
-  net::HttpRequestHeaders headers;
-  headers.SetHeader(net::HttpRequestHeaders::kAuthorization, auth_header);
-  headers.SetHeader(kAppIdKey, request_info_.app_id);
-  url_fetcher_->SetExtraRequestHeaders(headers.ToString());
+  std::string extra_headers;
+  request_info_->BuildRequestHeaders(&extra_headers);
+  url_fetcher_->SetExtraRequestHeaders(extra_headers);
 
   std::string body;
-  BuildFormEncoding(kAppIdKey, request_info_.app_id, &body);
-  BuildFormEncoding(kDeviceIdKey, android_id, &body);
-  BuildFormEncoding(kDeleteKey, kDeleteValue, &body);
-  BuildFormEncoding(kUnregistrationCallerKey,
-                    kUnregistrationCallerValue,
-                    &body);
+  request_info_->BuildRequestBody(&body);
 
   DVLOG(1) << "Unregistration request: " << body;
   url_fetcher_->SetUploadData(kRequestContentType, body);
 
-  DVLOG(1) << "Performing unregistration for: " << request_info_.app_id;
-  recorder_->RecordUnregistrationSent(request_info_.app_id);
+  DVLOG(1) << "Performing unregistration for: " << request_info_->app_id();
+  recorder_->RecordUnregistrationSent(request_info_->app_id());
   request_start_time_ = base::TimeTicks::Now();
   url_fetcher_->Start();
 }
@@ -171,11 +205,11 @@ void UnregistrationRequest::RetryWithBackoff(bool update_backoff) {
 
   if (backoff_entry_.ShouldRejectRequest()) {
     DVLOG(1) << "Delaying GCM unregistration of app: "
-             << request_info_.app_id << ", for "
+             << request_info_->app_id() << ", for "
              << backoff_entry_.GetTimeUntilRelease().InMilliseconds()
              << " milliseconds.";
     recorder_->RecordUnregistrationRetryDelayed(
-        request_info_.app_id,
+        request_info_->app_id(),
         backoff_entry_.GetTimeUntilRelease().InMilliseconds());
     base::MessageLoop::current()->PostDelayedTask(
         FROM_HERE,
@@ -191,13 +225,13 @@ void UnregistrationRequest::RetryWithBackoff(bool update_backoff) {
 
 void UnregistrationRequest::OnURLFetchComplete(const net::URLFetcher* source) {
   UnregistrationRequest::Status status =
-      ParseFetcherResponse(source, request_info_.app_id);
+      ParseFetcherResponse(source, request_info_->app_id());
 
   DVLOG(1) << "UnregistrationRequestStauts: " << status;
   UMA_HISTOGRAM_ENUMERATION("GCM.UnregistrationRequestStatus",
                             status,
                             UNREGISTRATION_STATUS_COUNT);
-  recorder_->RecordUnregistrationResponse(request_info_.app_id, status);
+  recorder_->RecordUnregistrationResponse(request_info_->app_id(), status);
 
   if (status == URL_FETCHING_FAILED ||
       status == SERVICE_UNAVAILABLE ||