Remove minimumLayoutDelay() and associated machinery

Source/web/WebViewImpl.cpp

Index: Source/web/WebViewImpl.cpp
diff --git a/Source/web/WebViewImpl.cpp b/Source/web/WebViewImpl.cpp
index dcad19b352389879f734234ca6fe73442cc48d20..5fa8e8eff661beb1acc01713e6b5d76df4d35a0c 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -1833,7 +1833,7 @@ void WebViewImpl::paint(WebCanvas* canvas, const WebRect& rect, PaintOptions opt
         FrameView* view = page()->mainFrame()->view();
         PaintBehavior oldPaintBehavior = view->paintBehavior();
         if (isAcceleratedCompositingActive()) {
-            ASSERT(option == ForceSoftwareRenderingAndIgnoreGPUResidentContent);            
+            ASSERT(option == ForceSoftwareRenderingAndIgnoreGPUResidentContent);
             view->setPaintBehavior(oldPaintBehavior | PaintBehaviorFlattenCompositingLayers);
         }
 
@@ -1845,7 +1845,7 @@ void WebViewImpl::paint(WebCanvas* canvas, const WebRect& rect, PaintOptions opt
         WebKit::Platform::current()->histogramCustomCounts("Renderer4.SoftwarePaintMegapixPerSecond", pixelsPerSec / 1000000, 10, 210, 30);
 
         if (isAcceleratedCompositingActive()) {
-            ASSERT(option == ForceSoftwareRenderingAndIgnoreGPUResidentContent);            
+            ASSERT(option == ForceSoftwareRenderingAndIgnoreGPUResidentContent);
             view->setPaintBehavior(oldPaintBehavior);
         }
     }
@@ -3383,11 +3383,14 @@ WebDragOperation WebViewImpl::dragTargetDragEnterOrOver(const WebPoint& clientPo
 
 void WebViewImpl::sendResizeEventAndRepaint()
 {
-    if (mainFrameImpl()->frameView()) {
-        // Enqueues the resize event.
-        mainFrameImpl()->frame()->eventHandler()->sendResizeEvent();
-    }
+    // FIXME: This is wrong. The FrameView is responsible sending a resizeEvent
+    // as part of layout. Layout is also responsible for sending invalidations
+    // to the embedder. This method and all callers may be wrong.
+    // This method used to send a resizeEvent, presumably in compensation for
+    // layout() being supressed for the first 250ms and thus not always sending
+    // repaintEvents for the initial layout.
 
+    // This paint invalidation should not be necessary, but won't harm anything either.

[esprehn, 2013/07/25 01:15:34]

FIXME

     if (m_client) {
         if (isAcceleratedCompositingActive()) {
             updateLayerTreeViewport();
@@ -3396,6 +3399,7 @@ void WebViewImpl::sendResizeEventAndRepaint()
             m_client->didInvalidateRect(damagedRect);
         }
     }
+    // Unclear what this is doing. Callers may actually need this code.

[esprehn, 2013/07/25 01:15:34]

FIXME: 

     if (m_pageOverlays)
         m_pageOverlays->update();
 }