content::WebServiceWorkerCache implementation.

content/common/service_worker/service_worker_messages.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Message definition file, included multiple times, hence no include guard.
 
 #include <string>
 #include <vector>
 
 #include "base/strings/string16.h"
@@ skipping 34 matching lines @@
                           content::SERVICE_WORKER_FETCH_EVENT_LAST)
 
 IPC_STRUCT_TRAITS_BEGIN(content::ServiceWorkerResponse)
   IPC_STRUCT_TRAITS_MEMBER(url)
   IPC_STRUCT_TRAITS_MEMBER(status_code)
   IPC_STRUCT_TRAITS_MEMBER(status_text)
   IPC_STRUCT_TRAITS_MEMBER(headers)
   IPC_STRUCT_TRAITS_MEMBER(blob_uuid)
 IPC_STRUCT_TRAITS_END()
 
+IPC_STRUCT_TRAITS_BEGIN(content::ServiceWorkerCacheQueryParams)
+  IPC_STRUCT_TRAITS_MEMBER(ignore_search)
+  IPC_STRUCT_TRAITS_MEMBER(ignore_method)
+  IPC_STRUCT_TRAITS_MEMBER(ignore_vary)
+  IPC_STRUCT_TRAITS_MEMBER(prefix_match)
+IPC_STRUCT_TRAITS_END()
+
+IPC_ENUM_TRAITS_MAX_VALUE(content::ServiceWorkerCacheOperationType,
+                          content::SERVICE_WORKER_CACHE_OPERATION_TYPE_LAST)
+
+IPC_STRUCT_TRAITS_BEGIN(content::ServiceWorkerBatchOperation)
+  IPC_STRUCT_TRAITS_MEMBER(operation_type)
+  IPC_STRUCT_TRAITS_MEMBER(request)
+  IPC_STRUCT_TRAITS_MEMBER(response)
+  IPC_STRUCT_TRAITS_MEMBER(match_params)
+IPC_STRUCT_TRAITS_END()
+
 IPC_STRUCT_TRAITS_BEGIN(content::ServiceWorkerObjectInfo)
   IPC_STRUCT_TRAITS_MEMBER(handle_id)
   IPC_STRUCT_TRAITS_MEMBER(scope)
   IPC_STRUCT_TRAITS_MEMBER(url)
   IPC_STRUCT_TRAITS_MEMBER(state)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(content::ServiceWorkerRegistrationObjectInfo)
   IPC_STRUCT_TRAITS_MEMBER(handle_id)
   IPC_STRUCT_TRAITS_MEMBER(scope)
@@ skipping 104 matching lines @@
                     int /* request_id */,
                     base::string16 /* fetch_store_name */)
 
 IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_CacheStorageDelete,
                     int /* request_id */,
                     base::string16 /* fetch_store_name */)
 
 IPC_MESSAGE_ROUTED1(ServiceWorkerHostMsg_CacheStorageKeys,
                     int /* request_id */)
 
+// Cache operations in the browser.
+IPC_MESSAGE_ROUTED4(ServiceWorkerHostMsg_CacheMatch,

[michaeln, 2014/09/06 00:56:41]

The embedded worker routed message passing scheme only works from within service
worker scripts, so if/when this is made callable from within pages, stuff will
have to be rearranged a little. We could tie an instance of the SWCacheListener
in the browser process with an instance of a SWProviderHost and route all cache
related messages that way based on provider_id.

+                    int /* request_id */,
+                    int /* cache_id */,
+                    content::ServiceWorkerFetchRequest,
+                    content::ServiceWorkerCacheQueryParams)
+
+IPC_MESSAGE_ROUTED4(ServiceWorkerHostMsg_CacheMatchAll,

[michaeln, 2014/09/06 00:56:41]

Does it make sense to handle match and matchAll on the renderer-side? When
opening a cache, load up enough info about it to perform those functions w/o
further roundtrips?

+                    int /* request_id */,
+                    int /* cache_id */,
+                    content::ServiceWorkerFetchRequest,
+                    content::ServiceWorkerCacheQueryParams)
+
+IPC_MESSAGE_ROUTED4(ServiceWorkerHostMsg_CacheKeys,
+                    int /* request_id */,
+                    int /* cache_id */,
+                    content::ServiceWorkerFetchRequest,
+                    content::ServiceWorkerCacheQueryParams);
+
+IPC_MESSAGE_ROUTED3(ServiceWorkerHostMsg_CacheBatch,
+                    int /* request_id */,
+                    int /* cache_id */,
+                    std::vector<content::ServiceWorkerBatchOperation>);
+
+// Called only once, at the final close, no matter how many times a cache has
+// been provided to a particular ServiceWorker.

[michaeln, 2014/09/06 00:56:41]

Having this listener class be scope to a particular execution context is very
nice for resource reclamation purposes!

+IPC_MESSAGE_ROUTED1(ServiceWorkerHostMsg_CacheClosed,
+                    int /* cache_id */);
+
 //---------------------------------------------------------------------------
 // Messages sent from the browser to the child process.
 //
 // NOTE: All ServiceWorkerMsg messages not sent via EmbeddedWorker must have
 // a thread_id as their first field so that ServiceWorkerMessageFilter can
 // extract it and dispatch the message to the correct ServiceWorkerDispatcher
 // on the correct thread.
 
 // Response to ServiceWorkerMsg_RegisterServiceWorker.
 IPC_MESSAGE_CONTROL4(ServiceWorkerMsg_ServiceWorkerRegistered,
@@ skipping 106 matching lines @@
                      blink::WebServiceWorkerCacheError /* reason */)
 IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_CacheStorageCreateError,
                      int /* request_id */,
                      blink::WebServiceWorkerCacheError /* reason */)
 IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_CacheStorageDeleteError,
                      int /* request_id */,
                      blink::WebServiceWorkerCacheError /* reason */)
 IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_CacheStorageKeysError,
                      int /* request_id */,
                      blink::WebServiceWorkerCacheError /* reason */)
+
+// Sent via EmbeddedWorker at successful completion of Cache operations.
+IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_CacheMatchSuccess,
+                     int /* request_id */,
+                     content::ServiceWorkerResponse)
+IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_CacheMatchAllSuccess,
+                     int /* request_id */,
+                     std::vector<content::ServiceWorkerResponse>)
+IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_CacheKeysSuccess,
+                     int /* request_id */,
+                     std::vector<content::ServiceWorkerFetchRequest>)
+IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_CacheBatchSuccess,
+                     int /* request_id */,
+                     std::vector<content::ServiceWorkerResponse>)
+
+// Sent via EmbeddedWorker at erroneous completion of CacheStorage operations.
+IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_CacheMatchError,
+                     int /* request_id */,
+                     blink::WebServiceWorkerCacheError)
+IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_CacheMatchAllError,
+                     int /* request_id */,
+                     blink::WebServiceWorkerCacheError)
+IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_CacheKeysError,
+                     int /* request_id */,
+                     blink::WebServiceWorkerCacheError)
+IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_CacheBatchError,
+                     int /* request_id */,
+                     blink::WebServiceWorkerCacheError)