Re-landing issue 4202006 (http://codereview.chromium.org/4202006/show) which ...

chrome/service/cloud_print/cloud_print_helpers.cc

Index: chrome/service/cloud_print/cloud_print_helpers.cc
===================================================================
--- chrome/service/cloud_print/cloud_print_helpers.cc	(revision 64444)
+++ chrome/service/cloud_print/cloud_print_helpers.cc	(working copy)
@@ -14,7 +14,6 @@
 #include "base/values.h"
 #include "chrome/service/cloud_print/cloud_print_consts.h"
 #include "chrome/common/net/url_fetcher.h"
-#include "chrome/service/net/service_url_request_context.h"
 #include "chrome/service/service_process.h"
 
 std::string StringFromJobStatus(cloud_print::PrintJobStatus status) {
@@ -138,14 +137,12 @@
     const std::string& response_data, bool* succeeded,
     DictionaryValue** response_dict) {
   scoped_ptr<Value> message_value(base::JSONReader::Read(response_data, false));
-  if (!message_value.get()) {
-    NOTREACHED();
+  if (!message_value.get())
     return false;
-  }
-  if (!message_value->IsType(Value::TYPE_DICTIONARY)) {
-    NOTREACHED();
+
+  if (!message_value->IsType(Value::TYPE_DICTIONARY))
     return false;
-  }
+
   scoped_ptr<DictionaryValue> response_dict_local(
       static_cast<DictionaryValue*>(message_value.release()));
   if (succeeded)
@@ -155,37 +152,6 @@
   return true;
 }
 
-void CloudPrintHelpers::PrepCloudPrintRequest(URLFetcher* request,
-                                              const std::string& auth_token) {
-  DCHECK(g_service_process);
-  request->set_request_context(new ServiceURLRequestContextGetter());
-  std::string headers = "Authorization: GoogleLogin auth=";
-  headers += auth_token;
-  headers += "\r\n";
-  headers += kChromeCloudPrintProxyHeader;
-  request->set_extra_request_headers(headers);
-}
-
-void CloudPrintHelpers::HandleServerError(int* error_count, int max_retry_count,
-                                          int64 max_retry_interval,
-                                          int64 base_retry_interval,
-                                          Task* task_to_retry,
-                                          Task* task_on_give_up) {
-  (*error_count)++;
-  if ((-1 != max_retry_count) && (*error_count > max_retry_count)) {
-    if (task_on_give_up) {
-      MessageLoop::current()->PostTask(FROM_HERE, task_on_give_up);
-    }
-  } else {
-    int64 retry_interval = base_retry_interval * (*error_count);
-    if ((-1 != max_retry_interval) && (retry_interval > max_retry_interval)) {
-      retry_interval = max_retry_interval;
-    }
-    MessageLoop::current()->PostDelayedTask(FROM_HERE, task_to_retry,
-        retry_interval);
-  }
-}
-
 void CloudPrintHelpers::AddMultipartValueForUpload(
     const std::string& value_name, const std::string& value,
     const std::string& mime_boundary, const std::string& content_type,