OS X: Fix the build with the Qt SDK

Change-Id: Icc4219ace4121a4b30302e0348e48dc75cae54cb
Reviewed-by: Zeno Albisser <zeno.albisser@digia.com>

examples/webengine/quicknanobrowser/main.cpp

@@ -47,7 +47,7 @@ typedef QApplication Application;
 #include <QtGui/QGuiApplication>
 typedef QGuiApplication Application;
 #endif
-#include <qtwebengineglobal.h>
+#include <QtWebEngine/qtwebengineglobal.h>
 
 int main(int argc, char **argv)
 {

src/webengine/plugin/plugin.pro

@@ -6,7 +6,7 @@ IMPORT_VERSION = 1.0
 QT += webengine qml quick
 QT_PRIVATE += webengine-private qml-private quick-private gui-private core-private
 
-INCLUDEPATH += $$QTWEBENGINE_ROOT/src/core $$QTWEBENGINE_ROOT/src/webengine $$QTWEBENGINE_ROOT/src/webengine/api
+INCLUDEPATH += $$QTWEBENGINE_ROOT/src/core $$QTWEBENGINE_ROOT/src/webengine $$QTWEBENGINE_ROOT/src/webengine/api $$QTWEBENGINE_ROOT/include/QtWebEngine
 
 SOURCES = plugin.cpp
 

src/webenginewidgets/webenginewidgets.pro

@@ -8,7 +8,7 @@ QT_PRIVATE += webenginecore widgets-private quick-private gui-private network-pr
 
 QMAKE_DOCS = $$PWD/doc/qtwebenginewidgets.qdocconf
 
-INCLUDEPATH += $$PWD api ../core
+INCLUDEPATH += $$PWD api ../core ../webengine/api
 
 SOURCES = \
         api/qtwebenginewidgetsglobal.cpp \