Move mimetype definitions to plugin specs

- Avoids the hassle of QRC files and manually registering mime types
- Avoids performance regressions because of mime types that are
  registered after mime database has been used
- Makes it technically possible to detect that a disabled plugin could
  handle a mime type if it was enabled

Change-Id: I373008b1b56e9c6b4853055f20b3eeb112a6eff9
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
Reviewed-by: hjk <hjk@qt.io>

src/plugins/android/Android.json.in

@@ -15,5 +15,16 @@
     \"Category\" : \"Device Support\",
     \"Description\" : \"Support for deployment to and execution on Android Devices.\",
     \"Url\" : \"http://necessitas.kde.org\",
-    $$dependencyList
+    $$dependencyList,
+
+    \"Mimetypes\" : \"
+    <?xml version=\'1.0\'?>
+    <mime-info xmlns=\'http://www.freedesktop.org/standards/shared-mime-info\'>
+        <mime-type type=\'application/vnd.google.android.android_manifest\'>
+            <comment>Android manifest file</comment>
+            <sub-class-of type=\'application/xml\'/>
+            <glob pattern=\'AndroidManifest.xml\'/>
+        </mime-type>
+    </mime-info>
+    \"
 }

src/plugins/android/Android.mimetypes.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0"?>
-<mime-info xmlns='http://www.freedesktop.org/standards/shared-mime-info'>
-    <mime-type type="application/vnd.google.android.android_manifest">
-        <comment>Android manifest file</comment>
-        <sub-class-of type="application/xml"/>
-        <glob pattern="AndroidManifest.xml"/>
-    </mime-type>
-</mime-info>

src/plugins/android/android.qrc

@@ -5,6 +5,5 @@
         <file>images/androiddevicesmall.png</file>
         <file>images/androiddevicesmall@2x.png</file>
         <file>images/download.png</file>
-        <file>Android.mimetypes.xml</file>
     </qresource>
 </RCC>

src/plugins/android/androidplugin.cpp

@@ -52,8 +52,6 @@
 
 #include <qtsupport/qtversionmanager.h>
 
-#include <utils/mimetypes/mimedatabase.h>
-
 #include <QtPlugin>
 
 using namespace ProjectExplorer;
@@ -81,8 +79,6 @@ bool AndroidPlugin::initialize(const QStringList &arguments, QString *errorMessa
     addAutoReleasedObject(new Internal::JavaEditorFactory);
     KitManager::registerKitInformation(new Internal::AndroidGdbServerKitInformation);
 
-    Utils::MimeDatabase::addMimeTypes(QLatin1String(":/android/Android.mimetypes.xml"));
-
     addAutoReleasedObject(new Internal::AndroidManifestEditorFactory);
 
     connect(KitManager::instance(), &KitManager::kitsLoaded,