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

2 files changed, 6 insertions, 3 deletions

diff --git a/webkit/glue/plugins/pepper_resource_tracker.cc b/webkit/glue/plugins/pepper_resource_tracker.cc
index ba6f8f0..f9d24ed 100644
--- a/webkit/glue/plugins/pepper_resource_tracker.cc
+++ b/webkit/glue/plugins/pepper_resource_tracker.cc
@@ -29,6 +29,11 @@ ResourceTracker::ResourceTracker()
 ResourceTracker::~ResourceTracker() {
 }
 
+// static
+ResourceTracker* ResourceTracker::Get() {
+  return Singleton<ResourceTracker>::get();
+}
+
 PP_Resource ResourceTracker::AddResource(Resource* resource) {
   // If the plugin manages to create 4B resources...
   if (last_id_ == std::numeric_limits<PP_Resource>::max()) {
diff --git a/webkit/glue/plugins/pepper_resource_tracker.h b/webkit/glue/plugins/pepper_resource_tracker.h
index ad25d1a..8e294855 100644
--- a/webkit/glue/plugins/pepper_resource_tracker.h
+++ b/webkit/glue/plugins/pepper_resource_tracker.h
@@ -29,9 +29,7 @@ class Resource;
 class ResourceTracker {
  public:
   // Returns the pointer to the singleton object.
-  static ResourceTracker* Get() {
-    return Singleton<ResourceTracker>::get();
-  }
+  static ResourceTracker* Get();
 
   // PP_Resources --------------------------------------------------------------