Add a new GetInstance() method for singleton classes, take 2.

This is a small step towards making all singleton classes use the Singleton<T> pattern within their code and not expect the callers to know about it.

This CL includes all files except those under chrome/browser, chrome/net, chrome/service and third_party/WebKit (these will be done in future CLs).

Suggested files to focus for reviewers:
- joi@ for files under src/ceee
- tommi@ for files under src/chrome_frame
- maruel@ for the rest of the files.

BUG=65298
TEST=all existing tests should continue to pass.

Review URL: http://codereview.chromium.org/5581008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@68577 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 8 insertions, 2 deletions

diff --git a/chrome_frame/simple_resource_loader.cc b/chrome_frame/simple_resource_loader.cc
index 89a51d7..324c5ca 100644
--- a/chrome_frame/simple_resource_loader.cc
+++ b/chrome_frame/simple_resource_loader.cc
@@ -88,8 +88,9 @@ SimpleResourceLoader::SimpleResourceLoader()
   std::vector<std::wstring> language_tags;
 
   // First, try the locale dictated by policy and its fallback.
-  PushBackWithFallbackIfAbsent(Singleton<PolicySettings>()->ApplicationLocale(),
-                               &language_tags);
+  PushBackWithFallbackIfAbsent(
+      PolicySettings::GetInstance()->ApplicationLocale(),
+      &language_tags);
 
   // Next, try the thread, process, user, system languages.
   GetPreferredLanguages(&language_tags);
@@ -115,6 +116,11 @@ SimpleResourceLoader::~SimpleResourceLoader() {
 }
 
 // static
+SimpleResourceLoader* SimpleResourceLoader::instance() {
+  return Singleton<SimpleResourceLoader>::get();
+}
+
+// static
 void SimpleResourceLoader::GetPreferredLanguages(
     std::vector<std::wstring>* language_tags) {
   DCHECK(language_tags);