1 files changed, 40 insertions, 14 deletions

diff --git a/src/3rdparty/webkit/WebCore/page/FrameView.cpp b/src/3rdparty/webkit/WebCore/page/FrameView.cpp
index bc0519ffb5..a53db367f8 100644
--- a/src/3rdparty/webkit/WebCore/page/FrameView.cpp
+++ b/src/3rdparty/webkit/WebCore/page/FrameView.cpp
@@ -80,23 +80,25 @@ using namespace HTMLNames;
 
 double FrameView::sCurrentPaintTimeStamp = 0.0;
 
+// REPAINT_THROTTLING now chooses default values for throttling parameters.
+// Should be removed when applications start using runtime configuration.
 #if ENABLE(REPAINT_THROTTLING)
 // Normal delay
-static const double deferredRepaintDelay = 0.025;
+double FrameView::s_deferredRepaintDelay = 0.025;
 // Negative value would mean that first few repaints happen without a delay
-static const double initialDeferredRepaintDelayDuringLoading = 0;
+double FrameView::s_initialDeferredRepaintDelayDuringLoading = 0;
 // The delay grows on each repaint to this maximum value
-static const double maxDeferredRepaintDelayDuringLoading = 2.5;
+double FrameView::s_maxDeferredRepaintDelayDuringLoading = 2.5;
 // On each repaint the delay increses by this amount
-static const double deferredRepaintDelayIncrementDuringLoading = 0.5;
+double FrameView::s_deferredRepaintDelayIncrementDuringLoading = 0.5;
 #else
 // FIXME: Repaint throttling could be good to have on all platform.
 // The balance between CPU use and repaint frequency will need some tuning for desktop.
 // More hooks may be needed to reset the delay on things like GIF and CSS animations.
-static const double deferredRepaintDelay = 0;
-static const double initialDeferredRepaintDelayDuringLoading = 0;
-static const double maxDeferredRepaintDelayDuringLoading = 0;
-static const double deferredRepaintDelayIncrementDuringLoading = 0;
+double FrameView::s_deferredRepaintDelay = 0;
+double FrameView::s_initialDeferredRepaintDelayDuringLoading = 0;
+double FrameView::s_maxDeferredRepaintDelayDuringLoading = 0;
+double FrameView::s_deferredRepaintDelayIncrementDuringLoading = 0;
 #endif
 
 // The maximum number of updateWidgets iterations that should be done before returning.
@@ -200,7 +202,7 @@ void FrameView::reset()
     m_deferringRepaints = 0;
     m_repaintCount = 0;
     m_repaintRects.clear();
-    m_deferredRepaintDelay = initialDeferredRepaintDelayDuringLoading;
+    m_deferredRepaintDelay = s_initialDeferredRepaintDelayDuringLoading;
     m_deferredRepaintTimer.stop();
     m_lastPaintTime = 0;
     m_paintBehavior = PaintBehaviorNormal;
@@ -1218,13 +1220,13 @@ void FrameView::updateDeferredRepaintDelay()
 {
     Document* document = m_frame->document();
     if (!document || (!document->parsing() && !document->docLoader()->requestCount())) {
-        m_deferredRepaintDelay = deferredRepaintDelay;
+        m_deferredRepaintDelay = s_deferredRepaintDelay;
         return;
     }
-    if (m_deferredRepaintDelay < maxDeferredRepaintDelayDuringLoading) {
-        m_deferredRepaintDelay += deferredRepaintDelayIncrementDuringLoading;
-        if (m_deferredRepaintDelay > maxDeferredRepaintDelayDuringLoading)
-            m_deferredRepaintDelay = maxDeferredRepaintDelayDuringLoading;
+    if (m_deferredRepaintDelay < s_maxDeferredRepaintDelayDuringLoading) {
+        m_deferredRepaintDelay += s_deferredRepaintDelayIncrementDuringLoading;
+        if (m_deferredRepaintDelay > s_maxDeferredRepaintDelayDuringLoading)
+            m_deferredRepaintDelay = s_maxDeferredRepaintDelayDuringLoading;
     }
 }
 
@@ -2143,4 +2145,28 @@ IntPoint FrameView::convertFromContainingView(const IntPoint& parentPoint) const
     return parentPoint;
 }
 
+// Normal delay
+void FrameView::setRepaintThrottlingDeferredRepaintDelay(double p)
+{
+    s_deferredRepaintDelay = p;
+}
+
+// Negative value would mean that first few repaints happen without a delay
+void FrameView::setRepaintThrottlingnInitialDeferredRepaintDelayDuringLoading(double p)
+{
+    s_initialDeferredRepaintDelayDuringLoading = p;
+}
+
+// The delay grows on each repaint to this maximum value
+void FrameView::setRepaintThrottlingMaxDeferredRepaintDelayDuringLoading(double p)
+{
+    s_maxDeferredRepaintDelayDuringLoading = p;
+}
+
+// On each repaint the delay increases by this amount
+void FrameView::setRepaintThrottlingDeferredRepaintDelayIncrementDuringLoading(double p)
+{
+    s_deferredRepaintDelayIncrementDuringLoading = p;
+}
+
 } // namespace WebCore