Move some Document timers to frame-specific task runners.

third_party/WebKit/Source/core/dom/Document.cpp

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 88e8ddba1d5c4b64bf97c45c03775722e611459a..d56b7e06abd63b0172686f247ef987ed87b4e2fc 100644
--- a/third_party/WebKit/Source/core/dom/Document.cpp
+++ b/third_party/WebKit/Source/core/dom/Document.cpp
@@ -476,8 +476,14 @@ Document::Document(const DocumentInit& initializer,
       m_contextDocument(initializer.contextDocument()),
       m_hasFullscreenSupplement(false),
       m_loadEventDelayCount(0),
-      m_loadEventDelayTimer(this, &Document::loadEventDelayTimerFired),
-      m_pluginLoadingTimer(this, &Document::pluginLoadingTimerFired),
+      m_loadEventDelayTimer(TaskType::Networking,
+                            this,
+                            this,
+                            &Document::loadEventDelayTimerFired),
+      m_pluginLoadingTimer(TaskType::Internal,
+                           this,
+                           this,
+                           &Document::pluginLoadingTimerFired),
       m_documentTiming(*this),
       m_writeRecursionIsTooDeep(false),
       m_writeRecursionDepth(0),