Make SdchManager per-profile.

chrome/browser/browser_process_impl.cc

Index: chrome/browser/browser_process_impl.cc
diff --git a/chrome/browser/browser_process_impl.cc b/chrome/browser/browser_process_impl.cc
index 01e0d306124af77fbe1edf0330537b559eca7a2e..eac76f225baa1690f8bfee685b82f13e13172e3a 100644
--- a/chrome/browser/browser_process_impl.cc
+++ b/chrome/browser/browser_process_impl.cc
@@ -49,7 +49,6 @@
 #include "chrome/browser/metrics/thread_watcher.h"
 #include "chrome/browser/net/chrome_net_log.h"
 #include "chrome/browser/net/crl_set_fetcher.h"
-#include "chrome/browser/net/sdch_dictionary_fetcher.h"
 #include "chrome/browser/notifications/notification_ui_manager.h"
 #include "chrome/browser/plugins/chrome_plugin_service_filter.h"
 #include "chrome/browser/plugins/plugin_finder.h"
@@ -218,13 +217,6 @@ BrowserProcessImpl::~BrowserProcessImpl() {
 
 void BrowserProcessImpl::StartTearDown() {
     TRACE_EVENT0("shutdown", "BrowserProcessImpl::StartTearDown");
-  // We need to shutdown the SdchDictionaryFetcher as it regularly holds
-  // a pointer to a URLFetcher, and that URLFetcher (upon destruction) will do
-  // a PostDelayedTask onto the IO thread.  This shutdown call will both discard
-  // any pending URLFetchers, and avoid creating any more.
-  BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
-                          base::Bind(&SdchDictionaryFetcher::Shutdown));
-
   // We need to destroy the MetricsServicesManager, IntranetRedirectDetector,
   // PromoResourceService, and SafeBrowsing ClientSideDetectionService (owned by
   // the SafeBrowsingService) before the io_thread_ gets destroyed, since their