[WIP] WebFonts cache-aware timeout adaption

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

Index: third_party/WebKit/Source/core/fetch/ResourceLoader.cpp
diff --git a/third_party/WebKit/Source/core/fetch/ResourceLoader.cpp b/third_party/WebKit/Source/core/fetch/ResourceLoader.cpp
index 61b47c7850574d477ef9884ff14fd704ad6d9155..dd8472e7188137f68b6a9e854d829361503b81e7 100644
--- a/third_party/WebKit/Source/core/fetch/ResourceLoader.cpp
+++ b/third_party/WebKit/Source/core/fetch/ResourceLoader.cpp
@@ -137,6 +137,15 @@ bool ResourceLoader::willFollowRedirect(
   DCHECK(!passedNewRequest.isNull());
   DCHECK(!passedRedirectResponse.isNull());
 
+  if (m_resource->resourceRequest().isCacheAwareLoadingActivated()) {
+    // Fail as disk cache miss and retry in ResourceFetcher::didFailLoading().
+    WebURLError error;
+    error.reason = 1;  // non-zero

[kouhei (in TOK), 2016/10/20 10:43:07]

Would it be possible to do "error.setIsCacheMiss()"?

[Shao-Chuan Lee, 2016/10/21 04:35:02]

This WebURLError object will be converted into ResourceError in
|m_fetcher->didFailLoading()| in didFail(). Here we set reason to non-zero to
bypass
https://cs.chromium.org/chromium/src/third_party/WebKit/Source/platform/expor...
Blink does not interpret the meaning of reason, as suggested in
https://cs.chromium.org/chromium/src/third_party/WebKit/public/platform/WebUR...

+    error.isCacheMiss = true;
+    didFail(nullptr, error);
+    return false;
+  }
+
   ResourceRequest& newRequest(passedNewRequest.toMutableResourceRequest());
   const ResourceResponse& redirectResponse(
       passedRedirectResponse.toResourceResponse());