Index: third_party/WebKit/Source/core/dom/Document.cpp |
diff --git a/third_party/WebKit/Source/core/dom/Document.cpp b/third_party/WebKit/Source/core/dom/Document.cpp |
index f8d81f74113d91ab2d04a58971a36c4c6f6bf22a..4f4d89c6d8ec706d4dd89bd94994ec059c8de610 100644 |
--- a/third_party/WebKit/Source/core/dom/Document.cpp |
+++ b/third_party/WebKit/Source/core/dom/Document.cpp |
@@ -195,6 +195,7 @@ |
#include "core/loader/FrameLoaderClient.h" |
#include "core/loader/ImageLoader.h" |
#include "core/loader/NavigationScheduler.h" |
+#include "core/loader/PrerendererClient.h" |
#include "core/loader/appcache/ApplicationCacheHost.h" |
#include "core/observer/ResizeObserverController.h" |
#include "core/page/ChromeClient.h" |
@@ -1327,6 +1328,15 @@ PageVisibilityState Document::pageVisibilityState() const |
return m_frame->page()->visibilityState(); |
} |
+bool Document::isPrefetchOnly() const |
+{ |
+ if (!m_frame || !m_frame->page()) |
+ return false; |
+ |
+ PrerendererClient* prerendererClient = PrerendererClient::from(m_frame->page()); |
+ return prerendererClient && prerendererClient->isPrefetchOnly(); |
+} |
+ |
String Document::visibilityState() const |
{ |
return pageVisibilityStateString(pageVisibilityState()); |
@@ -2437,8 +2447,12 @@ DocumentParser* Document::implicitOpen(ParserSynchronizationPolicy parserSyncPol |
setCompatibilityMode(NoQuirksMode); |
- if (!threadedParsingEnabledForTesting()) |
+ if (!threadedParsingEnabledForTesting()) { |
parserSyncPolicy = ForceSynchronousParsing; |
+ } else if (parserSyncPolicy == AllowAsynchronousParsing && isPrefetchOnly()) { |
+ // Prefetch must be synchronous. |
+ parserSyncPolicy = ForceSynchronousParsing; |
+ } |
m_parserSyncPolicy = parserSyncPolicy; |
m_parser = createParser(); |