Delete an assortment of unneeded paint invalidation code.

sky/engine/core/frame/FrameView.cpp

Index: sky/engine/core/frame/FrameView.cpp
diff --git a/sky/engine/core/frame/FrameView.cpp b/sky/engine/core/frame/FrameView.cpp
index 5db4c925a9a6e45e4ab2c04b24fa9e7788f1aa25..ea8e7e0e92bb35cd111ac07637a32a994b7a75a7 100644
--- a/sky/engine/core/frame/FrameView.cpp
+++ b/sky/engine/core/frame/FrameView.cpp
@@ -407,8 +407,6 @@ void FrameView::invalidateTreeIfNeeded()
     RenderView& rootForPaintInvalidation = *renderView();
     ASSERT(!rootForPaintInvalidation.needsLayout());
 
-    TRACE_EVENT1("blink", "FrameView::invalidateTree", "root", rootForPaintInvalidation.debugName().ascii().data());
-
     PaintInvalidationState rootPaintInvalidationState(rootForPaintInvalidation);
 
     rootForPaintInvalidation.invalidateTreeIfNeeded(rootPaintInvalidationState);
@@ -418,9 +416,6 @@ void FrameView::invalidateTreeIfNeeded()
     renderView()->assertSubtreeClearedPaintInvalidationState();
 #endif
 
-    if (m_frame->selection().isCaretBoundsDirty())
-        m_frame->selection().invalidateCaretRect();
-
     lifecycle().advanceTo(DocumentLifecycle::PaintInvalidationClean);
 }
 
@@ -472,20 +467,6 @@ HostWindow* FrameView::hostWindow() const
     return &page->chrome();
 }
 
-void FrameView::contentRectangleForPaintInvalidation(const IntRect& r)
-{
-    ASSERT(paintInvalidationIsAllowed());
-
-    IntRect paintRect = r;
-    if (clipsPaintInvalidations() && !paintsEntireContents())
-        paintRect.intersect(visibleContentRect());
-    if (paintRect.isEmpty())
-        return;
-
-    if (HostWindow* window = hostWindow())
-        window->invalidateContentsAndRootView(contentsToWindow(paintRect));
-}
-
 void FrameView::contentsResized()
 {
     setNeedsLayout();