[Element / Autofill] Add boundsInViewportFloat() to fix <input> popup misalignment.

third_party/WebKit/Source/core/frame/FrameView.cpp

Index: third_party/WebKit/Source/core/frame/FrameView.cpp
diff --git a/third_party/WebKit/Source/core/frame/FrameView.cpp b/third_party/WebKit/Source/core/frame/FrameView.cpp
index 143a285cec09eff55cdb35f7bca6233e0eb36fbd..1c409e51aebacd77645f6856f0e5ce2f625c9f0b 100644
--- a/third_party/WebKit/Source/core/frame/FrameView.cpp
+++ b/third_party/WebKit/Source/core/frame/FrameView.cpp
@@ -2687,6 +2687,16 @@ IntRect FrameView::convertToLayoutObject(const LayoutObject& layoutObject, const
     return rectInContent;
 }
 
+FloatRect FrameView::convertFromLayoutObject(const LayoutObject& layoutObject, const FloatRect& layoutObjectRect) const
+{
+    FloatRect rect = layoutObject.localToAbsoluteQuad(layoutObjectRect).boundingBox();
+
+    // Convert from page ("absolute") to FrameView coordinates.
+    rect.moveBy(-scrollPosition());
+
+    return rect;
+}
+
 IntPoint FrameView::convertFromLayoutObject(const LayoutObject& layoutObject, const IntPoint& layoutObjectPoint) const
 {
     IntPoint point = roundedIntPoint(layoutObject.localToAbsolute(layoutObjectPoint, UseTransforms));
@@ -2724,6 +2734,24 @@ IntRect FrameView::convertToContainingWidget(const IntRect& localRect) const
     return localRect;
 }
 
+FloatRect FrameView::convertToContainingWidget(const FloatRect& localRect) const
+{
+    if (const FrameView* parentView = toFrameView(parent())) {
+        // Get our layoutObject in the parent view
+        LayoutPart* layoutObject = m_frame->ownerLayoutObject();
+        if (!layoutObject)
+            return localRect;
+
+        FloatRect rect(localRect);
+        // Add borders and padding??
+        rect.move(layoutObject->borderLeft() + layoutObject->paddingLeft(),
+            layoutObject->borderTop() + layoutObject->paddingTop());
+        return parentView->convertFromLayoutObject(*layoutObject, rect);
+    }
+
+    return localRect;
+}
+
 IntRect FrameView::convertFromContainingWidget(const IntRect& parentRect) const
 {
     if (const FrameView* parentView = toFrameView(parent())) {
@@ -3412,11 +3440,21 @@ IntPoint FrameView::contentsToFrame(const IntPoint& pointInContentSpace) const
     return pointInContentSpace - scrollOffset();
 }
 
+FloatPoint FrameView::contentsToFrame(const FloatPoint& pointInContentSpace) const
+{
+    return FloatPoint(pointInContentSpace - scrollOffset());
+}
+
 IntRect FrameView::contentsToFrame(const IntRect& rectInContentSpace) const
 {
     return IntRect(contentsToFrame(rectInContentSpace.location()), rectInContentSpace.size());
 }
 
+FloatRect FrameView::contentsToFrame(const FloatRect& rectInContentSpace) const
+{
+    return FloatRect(contentsToFrame(rectInContentSpace.location()), rectInContentSpace.size());
+}
+
 FloatPoint FrameView::frameToContents(const FloatPoint& pointInFrame) const
 {
     return pointInFrame + scrollOffset();
@@ -3482,6 +3520,13 @@ IntRect FrameView::contentsToViewport(const IntRect& rectInContents) const
     return m_frame->host()->visualViewport().rootFrameToViewport(rectInRootFrame);
 }
 
+FloatRect FrameView::contentsToViewport(const FloatRect& rectInContents) const
+{
+    FloatRect rectInFrame = contentsToFrame(rectInContents);
+    FloatRect rectInRootFrame = convertToRootFrame(rectInFrame);
+    return m_frame->host()->visualViewport().rootFrameToViewport(rectInRootFrame);
+}
+
 IntPoint FrameView::contentsToViewport(const IntPoint& pointInContents) const
 {
     IntPoint pointInFrame = contentsToFrame(pointInContents);
@@ -3725,6 +3770,14 @@ IntRect FrameView::convertFromContainingWidgetToScrollbar(const Scrollbar* scrol
     return newRect;
 }
 
+FloatRect FrameView::convertFromScrollbarToContainingWidget(const Scrollbar* scrollbar, const FloatRect& localRect) const
+{
+    // Scrollbars won't be transformed within us
+    FloatRect newRect = localRect;
+    newRect.moveBy(scrollbar->location());
+    return newRect;
+}
+
 // FIXME: test these on windows
 IntPoint FrameView::convertFromScrollbarToContainingWidget(const Scrollbar* scrollbar, const IntPoint& localPoint) const
 {