[WIP] Add Resource::IsShareable

third_party/WebKit/Source/platform/loader/fetch/RawResource.cpp

 /*
  * Copyright (C) 2011 Google Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 10 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "platform/loader/fetch/RawResource.h"
 
 #include <memory>
 #include "platform/HTTPNames.h"
 #include "platform/loader/fetch/FetchParameters.h"
-#include "platform/loader/fetch/MemoryCache.h"
 #include "platform/loader/fetch/ResourceClientWalker.h"
 #include "platform/loader/fetch/ResourceFetcher.h"
 #include "platform/loader/fetch/ResourceLoader.h"
 
 namespace blink {
 
 RawResource* RawResource::FetchSynchronously(FetchParameters& params,
                                              ResourceFetcher* fetcher) {
   params.MakeSynchronous();
   return ToRawResource(
@@ skipping 134 matching lines @@
 
 void RawResource::WillNotFollowRedirect() {
   ResourceClientWalker<RawResourceClient> w(Clients());
   while (RawResourceClient* c = w.Next())
     c->RedirectBlocked();
 }
 
 void RawResource::ResponseReceived(
     const ResourceResponse& response,
     std::unique_ptr<WebDataConsumerHandle> handle) {
-  if (response.WasFallbackRequiredByServiceWorker()) {
-    // The ServiceWorker asked us to re-fetch the request. This resource must
-    // not be reused.
-    // Note: This logic is needed here because DocumentThreadableLoader handles
-    // CORS independently from ResourceLoader. Fix it.
-    GetMemoryCache()->Remove(this);
-  }
-
-  bool is_successful_revalidation =
-      IsCacheValidator() && response.HttpStatusCode() == 304;
   Resource::ResponseReceived(response, nullptr);
 
   ResourceClientWalker<RawResourceClient> w(Clients());
   DCHECK(Clients().size() <= 1 || !handle);
   while (RawResourceClient* c = w.Next()) {
     // |handle| is cleared when passed, but it's not a problem because |handle|
     // is null when there are two or more clients, as asserted.
     c->ResponseReceived(this, this->GetResponse(), std::move(handle));
   }
-
-  // If we successfully revalidated, we won't get appendData() calls. Forward
-  // the data to clients now instead. Note: |m_data| can be null when no data is
-  // appended to the original resource.
-  if (is_successful_revalidation && Data()) {
-    ResourceClientWalker<RawResourceClient> w(Clients());
-    while (RawResourceClient* c = w.Next())
-      c->DataReceived(this, Data()->Data(), Data()->size());
-  }
 }
 
 void RawResource::SetSerializedCachedMetadata(const char* data, size_t size) {
   Resource::SetSerializedCachedMetadata(data, size);
   ResourceClientWalker<RawResourceClient> w(Clients());
   while (RawResourceClient* c = w.Next())
     c->SetSerializedCachedMetadata(this, data, size);
 }
 
 void RawResource::DidSendData(unsigned long long bytes_sent,
@@ skipping 139 matching lines @@
   SECURITY_CHECK(state_ != kNotAddedAsClient);
   SECURITY_CHECK(state_ != kNotifyFinished);
   SECURITY_CHECK(resource->ErrorOccurred() ||
                  (state_ == kResponseReceived ||
                   state_ == kSetSerializedCachedMetadata ||
                   state_ == kDataReceived || state_ == kDataDownloaded));
   state_ = kNotifyFinished;
 }
 
 }  // namespace blink