transferSize implementation

third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp

Index: third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp
diff --git a/third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp b/third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp
index 801b324af00ce6304fd1890de44a39028a7fe8d5..a56c9dd4174a84132a2f86b672849963b7bd88a4 100644
--- a/third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp
+++ b/third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp
@@ -779,6 +779,8 @@ void ResourceFetcher::storeResourceTimingInitiatorInformation(
   if (!isMainResource ||
       context().updateTimingInfoForIFrameNavigation(info.get()))
     m_resourceTimingInfoMap.add(resource, std::move(info));
+  else
+    m_mainResourceTimingInfoMap.add(resource->identifier(), std::move(info));

[Yoav Weiss, 2016/11/29 10:39:32]

kinuko@ - I'd love your opinion here as to whether we actually need a map? Are
there legitimate scenarios where we can have multiple non-iframe main resources
here?

[sunjian, 2016/11/29 19:33:30]

Acknowledged.

[panicker, 2016/11/30 00:12:15]

Also I added OWNERS of core/fetch to the review (tyoshino, Nate) - could  you
please chime in here?

[kinuko, 2016/11/30 07:08:26]

Sorry for slow response.  Hmm, I don't think we need this map... I might need to
double-check but in my understanding ResourceFetcher is created 1:1 for a
document and should be corresponding to one main resource.

 }
 
 ResourceFetcher::RevalidationPolicy
@@ -1120,6 +1122,16 @@ ArchiveResource* ResourceFetcher::createArchive(Resource* resource) {
   return m_archive ? m_archive->mainResource() : nullptr;
 }
 
+ResourceTimingInfo* ResourceFetcher::getMainResourceTimingInfo(
+    unsigned long identifier) {
+  MainResourceTimingInfoMap::iterator it =
+      m_mainResourceTimingInfoMap.find(identifier);
+  if (it != m_mainResourceTimingInfoMap.end()) {
+    return it->value.get();
+  }
+  return nullptr;
+}
+
 void ResourceFetcher::didFinishLoading(Resource* resource,
                                        double finishTime,
                                        int64_t encodedDataLength,
@@ -1138,6 +1150,22 @@ void ResourceFetcher::didFinishLoading(Resource* resource,
   DCHECK(finishReason == DidFinishFirstPartInMultipart ||
          !m_nonBlockingLoaders.contains(resource->loader()));
 
+  MainResourceTimingInfoMap::iterator it =
+      m_mainResourceTimingInfoMap.find(resource->identifier());
+  if (it != m_mainResourceTimingInfoMap.end()) {
+    // Store redirect responses that were packed inside the final response.
+    const Vector<ResourceResponse>& responses =
+        resource->response().redirectResponses();
+    for (size_t i = 0; i < responses.size(); ++i) {
+      const KURL& newURL = i + 1 < responses.size()
+                               ? KURL(responses[i + 1].url())
+                               : resource->resourceRequest().url();
+      bool crossOrigin = IsCrossOrigin(responses[i].url(), newURL);
+      it->value->addRedirect(responses[i], crossOrigin);
+    }
+    it->value->addFinalTransferSize(
+        encodedDataLength == -1 ? 0 : encodedDataLength);
+  }
   if (std::unique_ptr<ResourceTimingInfo> info =
           m_resourceTimingInfoMap.take(resource)) {
     // Store redirect responses that were packed inside the final response.
@@ -1403,6 +1431,13 @@ bool ResourceFetcher::willFollowRedirect(
     bool crossOrigin = IsCrossOrigin(redirectResponse.url(), newRequest.url());
     it->value->addRedirect(redirectResponse, crossOrigin);
   }
+  MainResourceTimingInfoMap::iterator itt =
+      m_mainResourceTimingInfoMap.find(resource->identifier());
+  if (itt != m_mainResourceTimingInfoMap.end()) {
+    bool crossOrigin = IsCrossOrigin(redirectResponse.url(), newRequest.url());
+    itt->value->addRedirect(redirectResponse, crossOrigin);
+  }
+
   newRequest.setAllowStoredCredentials(resource->options().allowCredentials ==
                                        AllowStoredCredentials);
   willSendRequest(resource->identifier(), newRequest, redirectResponse,