CacheStorage: Expand cache.keys() method.

content/browser/cache_storage/cache_storage_cache.h

Index: content/browser/cache_storage/cache_storage_cache.h
diff --git a/content/browser/cache_storage/cache_storage_cache.h b/content/browser/cache_storage/cache_storage_cache.h
index 72e1c9a4f0efce5ab116acbf39eab3d18d5d83b4..4e79b279c1dd02218d0661fea53362a971041800 100644
--- a/content/browser/cache_storage/cache_storage_cache.h
+++ b/content/browser/cache_storage/cache_storage_cache.h
@@ -104,7 +104,9 @@ class CONTENT_EXPORT CacheStorageCache
 
   // TODO(jkarlin): Have keys take an optional ServiceWorkerFetchRequest.

[zino, 2016/02/24 18:26:57]

jkarlin@,

Are you working on this TODO?
If you are working on the issue, I'm waiting for you.
If not so, can I resolve the issue with this CL together?

   // Returns CACHE_STORAGE_OK and a vector of requests if there are no errors.
-  void Keys(const RequestsCallback& callback);
+  void Keys(scoped_ptr<ServiceWorkerFetchRequest> request,
+            const CacheStorageCacheQueryParams& match_params,
+            const RequestsCallback& callback);
 
   // Closes the backend. Future operations that require the backend
   // will exit early. Close should only be called once per CacheStorageCache.
@@ -237,8 +239,8 @@ class CONTENT_EXPORT CacheStorageCache
                           int rv);
 
   // Keys callbacks.
-  void KeysImpl(const RequestsCallback& callback);
-  void KeysDidOpenAllEntries(const RequestsCallback& callback,
+  void KeysImpl(scoped_ptr<KeysContext> keys_context);
+  void KeysDidOpenAllEntries(scoped_ptr<KeysContext> keys_context,
                              scoped_ptr<OpenAllEntriesContext> entries_context,
                              CacheStorageError error);
   void KeysProcessNextEntry(scoped_ptr<KeysContext> keys_context,