Android: Fix initial window size for raster backend

We forgot to set the ShowIsFullScreen property for the raster
engine case. OpenGL windows already did the right thing, since
the GL backend is based on eglFS. The iOS backend also has
this logic.

Task-number: QTBUG-31984
Change-Id: I1cf5df32d79f441768126f00632107a7971eb5ad
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>

src/plugins/platforms/android/src/qandroidplatformintegration.cpp

@@ -216,6 +216,16 @@ QPlatformServices *QAndroidPlatformIntegration::services() const
     return m_androidPlatformServices;
 }
 
+QVariant QAndroidPlatformIntegration::styleHint(StyleHint hint) const
+{
+    switch (hint) {
+    case ShowIsFullScreen:
+        return true;
+    default:
+        return QPlatformIntegration::styleHint(hint);
+    }
+}
+
 static const QLatin1String androidThemeName("android");
 QStringList QAndroidPlatformIntegration::themeNames() const
 {

src/plugins/platforms/android/src/qandroidplatformintegration.h

@@ -112,6 +112,8 @@ public:
     QPlatformNativeInterface *nativeInterface() const;
     QPlatformServices *services() const;
 
+    QVariant styleHint(StyleHint hint) const;
+
     QStringList themeNames() const;
     QPlatformTheme *createPlatformTheme(const QString &name) const;