Utils/Android: Add themable, DPI-endabled Download icon to Utils::Icons

And use it in AdroidSettingsDialog

Change-Id: Ia847b6df0e5ab26fc02157f888565a3e6d86bb34
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/android/android.qrc

@@ -4,6 +4,5 @@
         <file>images/androiddevice@2x.png</file>
         <file>images/androiddevicesmall.png</file>
         <file>images/androiddevicesmall@2x.png</file>
-        <file>images/download.png</file>
     </qresource>
 </RCC>

src/plugins/android/androidsettingswidget.cpp

@@ -288,6 +288,11 @@ AndroidSettingsWidget::AndroidSettingsWidget(QWidget *parent)
 
     m_ui->downloadOpenJDKToolButton->setVisible(!Utils::HostOsInfo::isLinuxHost());
 
+    const QIcon downloadIcon = Utils::Icons::DOWNLOAD.icon();
+    m_ui->downloadSDKToolButton->setIcon(downloadIcon);
+    m_ui->downloadNDKToolButton->setIcon(downloadIcon);
+    m_ui->downloadOpenJDKToolButton->setIcon(downloadIcon);
+
     connect(&m_virtualDevicesWatcher, &QFutureWatcherBase::finished,
             this, &AndroidSettingsWidget::updateAvds);
     connect(&m_futureWatcher, &QFutureWatcherBase::finished,

src/plugins/android/androidsettingswidget.ui

@@ -53,10 +53,6 @@
         <property name="toolTip">
          <string>Download JDK</string>
         </property>
-        <property name="icon">
-         <iconset resource="android.qrc">
-          <normaloff>:/android/images/download.png</normaloff>:/android/images/download.png</iconset>
-        </property>
        </widget>
       </item>
       <item row="0" column="0">
@@ -112,10 +108,6 @@
         <property name="toolTip">
          <string>Download Android NDK</string>
         </property>
-        <property name="icon">
-         <iconset resource="android.qrc">
-          <normaloff>:/android/images/download.png</normaloff>:/android/images/download.png</iconset>
-        </property>
        </widget>
       </item>
       <item row="1" column="0">
@@ -155,10 +147,6 @@
         <property name="toolTip">
          <string>Download Android SDK</string>
         </property>
-        <property name="icon">
-         <iconset resource="android.qrc">
-          <normaloff>:/android/images/download.png</normaloff>:/android/images/download.png</iconset>
-        </property>
        </widget>
       </item>
       <item row="2" column="0" colspan="3">