Fix some compiler warnings

- Remove deprecated Qt::AA_EnableHighDpiScaling and Qt::AA_UseHighDpiPixmaps
  from examples. High-DPI scaling is always enabled.
- Reorder initialization of members of QWebEngineDownloadRequestPrivate.
  Also remove m_ prefix from public members' name.
- Remove unused parameters from methods of DummyDelegate.
- Add missing overrides in auto tests.

Change-Id: I18d6973b8bee574b37b73fbaaa8d57002ac8ba2d
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
(cherry picked from commit 740b8c94f27930a33298c81c2284d1f0a9e2f11b)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

8 files changed, 1 insertions, 12 deletions

diff --git a/examples/webengine/customdialogs/main.cpp b/examples/webengine/customdialogs/main.cpp
index 5aad8affb..e3c4ad085 100644
--- a/examples/webengine/customdialogs/main.cpp
+++ b/examples/webengine/customdialogs/main.cpp
@@ -66,7 +66,6 @@ typedef QGuiApplication Application;
 int main(int argc, char *argv[])
 {
     QCoreApplication::setOrganizationName("QtExamples");
-    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
     QtWebEngine::initialize();
 
     Application app(argc, argv);
diff --git a/examples/webengine/lifecycle/main.cpp b/examples/webengine/lifecycle/main.cpp
index bb93d64a7..3972639c5 100644
--- a/examples/webengine/lifecycle/main.cpp
+++ b/examples/webengine/lifecycle/main.cpp
@@ -57,7 +57,6 @@
 int main(int argc, char *argv[])
 {
     QCoreApplication::setOrganizationName("QtExamples");
-    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
     QtWebEngine::initialize();
     QGuiApplication app(argc, argv);
     QQmlApplicationEngine engine;
diff --git a/examples/webengine/minimal/doc/src/minimal.qdoc b/examples/webengine/minimal/doc/src/minimal.qdoc
index 4fc62bddb..1e629f689 100644
--- a/examples/webengine/minimal/doc/src/minimal.qdoc
+++ b/examples/webengine/minimal/doc/src/minimal.qdoc
@@ -56,10 +56,6 @@
     \l{WebEngineProfile::cachePath} and
     \l{WebEngineProfile::persistentStoragePath}).
 
-    We also set the Qt::AA_EnableHighDpiScaling attribute. This lets the web
-    view automatically scale on high-dpi displays. Then we instantiate a
-    QGuiApplication object.
-
     Next, we call \l{QtWebEngine::initialize}, which makes sure that OpenGL
     contexts can be shared between the main process and the dedicated renderer
     process (\c QtWebEngineProcess). This method needs to be called before
diff --git a/examples/webengine/minimal/main.cpp b/examples/webengine/minimal/main.cpp
index 86109f97a..fde716451 100644
--- a/examples/webengine/minimal/main.cpp
+++ b/examples/webengine/minimal/main.cpp
@@ -55,7 +55,6 @@
 int main(int argc, char *argv[])
 {
     QCoreApplication::setOrganizationName("QtExamples");
-    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
     QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts);
     QtWebEngine::initialize();
     QGuiApplication app(argc, argv);
diff --git a/examples/webengine/quicknanobrowser/main.cpp b/examples/webengine/quicknanobrowser/main.cpp
index f804c0d14..4c4c80390 100644
--- a/examples/webengine/quicknanobrowser/main.cpp
+++ b/examples/webengine/quicknanobrowser/main.cpp
@@ -79,7 +79,6 @@ static QUrl startupUrl()
 int main(int argc, char **argv)
 {
     QCoreApplication::setOrganizationName("QtExamples");
-    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
     QtWebEngine::initialize();
 
     Application app(argc, argv);
diff --git a/examples/webengine/recipebrowser/doc/src/recipebrowser.qdoc b/examples/webengine/recipebrowser/doc/src/recipebrowser.qdoc
index 63a0af361..6e1ed84e3 100644
--- a/examples/webengine/recipebrowser/doc/src/recipebrowser.qdoc
+++ b/examples/webengine/recipebrowser/doc/src/recipebrowser.qdoc
@@ -47,8 +47,7 @@
 
     In \c main.cpp, we use the \l{QGuiApplication} and \l{QQmlApplicationEngine}
     classes to set up and load the main QML file. We call \l{QtWebEngine::initialize} so we can use
-    \l{WebEngineView} in our QML code. We enable high DPI screen support by setting the
-    \l{Qt::AA_EnableHighDpiScaling} attribute. We set the default Qt Quick Controls 2 style
+    \l{WebEngineView} in our QML code. We set the default Qt Quick Controls 2 style
     to the Material style, so we do not have to specify it for each new item we add. Finally, we use
     a C++ define to check whether the application is compiled for an embedded platform.
     The value will be used in the main QML code to determine the window size.
diff --git a/examples/webengine/recipebrowser/main.cpp b/examples/webengine/recipebrowser/main.cpp
index e61b9e0f5..b5e5224ed 100644
--- a/examples/webengine/recipebrowser/main.cpp
+++ b/examples/webengine/recipebrowser/main.cpp
@@ -57,7 +57,6 @@
 int main(int argc, char *argv[])
 {
     QCoreApplication::setOrganizationName("QtExamples");
-    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
     QtWebEngine::initialize();
 
     QGuiApplication app(argc, argv);
diff --git a/examples/webengine/webengineaction/main.cpp b/examples/webengine/webengineaction/main.cpp
index f2dec9655..b0ef0848a 100644
--- a/examples/webengine/webengineaction/main.cpp
+++ b/examples/webengine/webengineaction/main.cpp
@@ -55,7 +55,6 @@
 int main(int argc, char *argv[])
 {
     QCoreApplication::setOrganizationName("QtExamples");
-    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
     QtWebEngine::initialize();
 
     QGuiApplication app(argc, argv);