predictors: Remove the HTTP restriction for speculative prefetch.

chrome/browser/predictors/resource_prefetch_predictor.cc

Index: chrome/browser/predictors/resource_prefetch_predictor.cc
diff --git a/chrome/browser/predictors/resource_prefetch_predictor.cc b/chrome/browser/predictors/resource_prefetch_predictor.cc
index bc941c5aac1b7634eed995e551f030cc298cefda..a2550a3e96b9af1a6cd39ad0aa9c381457c967c0 100644
--- a/chrome/browser/predictors/resource_prefetch_predictor.cc
+++ b/chrome/browser/predictors/resource_prefetch_predictor.cc
@@ -43,8 +43,8 @@ namespace {
 // For reporting whether a subresource is handled or not, and for what reasons.
 enum ResourceStatus {
   RESOURCE_STATUS_HANDLED = 0,
-  RESOURCE_STATUS_NOT_HTTP_PAGE = 1,
-  RESOURCE_STATUS_NOT_HTTP_RESOURCE = 2,
+  RESERVED_1 = 1,
+  RESERVED_2 = 2,
   RESOURCE_STATUS_UNSUPPORTED_MIME_TYPE = 4,
   RESOURCE_STATUS_NOT_GET = 8,
   RESOURCE_STATUS_URL_TOO_LONG = 16,
@@ -232,18 +232,13 @@ bool ResourcePrefetchPredictor::ShouldRecordRedirect(
 
 // static
 bool ResourcePrefetchPredictor::IsHandledMainPage(net::URLRequest* request) {
-  return request->original_url().scheme() == url::kHttpScheme;
+  return true;

[pasko, 2016/07/27 14:06:24]

we agreed offline that we should explicitly accept only http and https, for
extra safety

[Benoit L, 2016/07/27 14:25:56]

Done.

 }
 
 // static
 bool ResourcePrefetchPredictor::IsHandledSubresource(
     net::URLRequest* response) {
   int resource_status = 0;
-  if (response->first_party_for_cookies().scheme() != url::kHttpScheme)
-    resource_status |= RESOURCE_STATUS_NOT_HTTP_PAGE;
-
-  if (response->original_url().scheme() != url::kHttpScheme)
-    resource_status |= RESOURCE_STATUS_NOT_HTTP_RESOURCE;
 
   std::string mime_type;
   response->GetMimeType(&mime_type);