Move/replace/rename URL-based extension getters from ExtensionService to/in ExtensionSet.

chrome/browser/memory_details.cc

Index: chrome/browser/memory_details.cc
diff --git a/chrome/browser/memory_details.cc b/chrome/browser/memory_details.cc
index c06ed53ede94dc111ce5231eb72cb4ea5192f4b3..eac05b60e36d65ddb2fbac66f1432e9daa4307b6 100644
--- a/chrome/browser/memory_details.cc
+++ b/chrome/browser/memory_details.cc
@@ -233,7 +233,7 @@ void MemoryDetails::CollectChildInfoOnUIThread() {
         if (!contents) {
           if (extension_process_map->Contains(host->process()->GetID())) {
             const Extension* extension =
-                extension_service->GetExtensionByURL(url);
+                extension_service->extensions()->GetByID(url.host());
             if (extension) {
               string16 title = UTF8ToUTF16(extension->name());
               process.titles.push_back(title);