Make createWindow (mostly) work with OOPIF

Source/core/page/Chrome.cpp

Index: Source/core/page/Chrome.cpp
diff --git a/Source/core/page/Chrome.cpp b/Source/core/page/Chrome.cpp
index 0afcd943cfb59c0bb09c964afaf45b1682fc9435..5c0aa8cec269d197a427c2cc7d4ef5ae230306f2 100644
--- a/Source/core/page/Chrome.cpp
+++ b/Source/core/page/Chrome.cpp
@@ -38,11 +38,15 @@
 #include "core/page/WindowFeatures.h"
 #include "platform/FileChooser.h"
 #include "platform/Logging.h"
+#include "platform/PlatformScreen.h"
 #include "platform/geometry/IntRect.h"
 #include "platform/network/NetworkHints.h"
 #include "public/platform/WebScreenInfo.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/Vector.h"
+#include <algorithm>
+
+using namespace std;
 
 namespace blink {
 
@@ -84,9 +88,24 @@ void Chrome::contentsSizeChanged(LocalFrame* frame, const IntSize& size) const
     m_client->contentsSizeChanged(frame, size);
 }
 
-void Chrome::setWindowRect(const IntRect& rect) const
+void Chrome::setWindowRect(Widget* widget, const IntRect& pendingRect) const
 {
-    m_client->setWindowRect(rect);
+    IntRect screen = screenAvailableRect(widget);
+    IntRect window = pendingRect;
+
+    IntSize minimumSize = m_client->minimumWindowSize();
+    // Let size 0 pass through, since that indicates default size, not minimum size.
+    if (window.width())
+        window.setWidth(min(max(minimumSize.width(), window.width()), screen.width()));
+    if (window.height())
+        window.setHeight(min(max(minimumSize.height(), window.height()), screen.height()));
+
+    // Constrain the window position within the valid screen area.
+    window.setX(max(screen.x(), min(window.x(), screen.maxX() - window.width())));
+    window.setY(max(screen.y(), min(window.y(), screen.maxY() - window.height())));
+
+
+    m_client->setWindowRect(window);
 }
 
 IntRect Chrome::windowRect() const