Add SimpleResourceLoaderBridge::GetIoThread(), so it's possible to run tasks...

Add SimpleResourceLoaderBridge::GetIoThread(), so it's possible to run tasks in the IO thread when using SimpleResourceLoaderBridge.

This is a clone of http://codereview.chromium.org/3007015/show
Contributed by: bmcquade@google.com

BUG=none
TEST=none
TBR=rvargas


Review URL: http://codereview.chromium.org/2806084

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@54077 0039d316-1c4b-4281-b951-d872f2087c98

webkit/tools/test_shell/simple_resource_loader_bridge.cc

@@ -33,6 +33,7 @@
 #include "webkit/tools/test_shell/simple_resource_loader_bridge.h"
 
 #include "base/file_path.h"
+#include "base/logging.h"
 #include "base/message_loop.h"
 #if defined(OS_MACOSX) || defined(OS_WIN)
 #include "base/nss_util.h"
@@ -825,3 +826,13 @@ scoped_refptr<base::MessageLoopProxy>
     SimpleResourceLoaderBridge::GetCacheThread() {
   return g_cache_thread->message_loop_proxy();
 }
+
+// static
+scoped_refptr<base::MessageLoopProxy>
+    SimpleResourceLoaderBridge::GetIoThread() {
+  if (!EnsureIOThread()) {
+    LOG(DFATAL) << "Failed to create IO thread.";
+    return NULL;
+  }
+  return g_io_thread->message_loop_proxy();
+}

webkit/tools/test_shell/simple_resource_loader_bridge.h

@@ -37,8 +37,11 @@ class SimpleResourceLoaderBridge {
   static bool EnsureIOThread();
   static void SetAcceptAllCookies(bool accept_all_cookies);
 
-  // This method should only be called after Init(), and before Shutdown().
+  // These methods should only be called after Init(), and before
+  // Shutdown(). The MessageLoops get replaced upon each call to
+  // Init(), and destroyed upon a call to ShutDown().
   static scoped_refptr<base::MessageLoopProxy> GetCacheThread();
+  static scoped_refptr<base::MessageLoopProxy> GetIoThread();
 };
 
 #endif  // WEBKIT_TOOLS_TEST_SHELL_SIMPLE_RESOURCE_LOADER_BRIDGE_H__