Remove IOThread::message_loop().

Instead introduce BrowserThread::UnsafeGetMessageLoop which is used in
a couple of places.  This will be removed in a follow-up change.  I
could have used UnsafeGetBrowserThread(id)->message_loop() but this is
even easier to search for.

Also, remove a couple of BrowserProcess accessors that aren't used by anybody, and that were using UnsafeGetBrowserThread.

TBR=battre@chromium.org
BUG=98716


Review URL: http://codereview.chromium.org/8775014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@112697 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 9 deletions

diff --git a/chrome/browser/io_thread.cc b/chrome/browser/io_thread.cc
index 12b0c50..130a932 100644
--- a/chrome/browser/io_thread.cc
+++ b/chrome/browser/io_thread.cc
@@ -589,11 +589,6 @@ void IOThread::ClearHostCache() {
     host_cache->clear();
 }
 
-MessageLoop* IOThread::message_loop() const {
-  return BrowserThread::UnsafeGetBrowserThread(
-      BrowserThread::IO)->message_loop();
-}
-
 net::SSLConfigService* IOThread::GetSSLConfigService() {
   return ssl_config_service_manager_->Get();
 }
@@ -602,7 +597,7 @@ void IOThread::InitSystemRequestContext() {
   if (system_url_request_context_getter_)
     return;
   // If we're in unit_tests, IOThread may not be run.
-  if (!message_loop())
+  if (!BrowserThread::IsMessageLoopValid(BrowserThread::IO))
     return;
   ChromeProxyConfigService* proxy_config_service =
       ProxyServiceFactory::CreateProxyConfigService();
@@ -615,9 +610,11 @@ void IOThread::InitSystemRequestContext() {
       new SystemURLRequestContextGetter(this);
   // Safe to post an unretained this pointer, since IOThread is
   // guaranteed to outlive the IO BrowserThread.
-  message_loop()->PostTask(
-      FROM_HERE, base::Bind(&IOThread::InitSystemRequestContextOnIOThread,
-                            base::Unretained(this)));
+  BrowserThread::PostTask(
+      BrowserThread::IO,
+      FROM_HERE,
+      base::Bind(&IOThread::InitSystemRequestContextOnIOThread,
+                 base::Unretained(this)));
 }
 
 void IOThread::InitSystemRequestContextOnIOThread() {