Try to start all external Services over DBus

No need to hardcode this only for Cloud Messaging

src/api-impl-jni/content/android_content_Context.c

@@ -176,9 +176,10 @@ JNIEXPORT void JNICALL Java_android_content_Context_nativeRegisterUnifiedPush(JN
 	(*env)->ReleaseStringUTFChars(env, application_jstr, application);
 }
 
-JNIEXPORT void JNICALL Java_android_content_Context_nativeStartExternalService(JNIEnv *env, jclass this, jstring package_jstr, jobject intent)
+JNIEXPORT void JNICALL Java_android_content_Context_nativeStartExternalService(JNIEnv *env, jclass this, jobject intent)
 {
 	GVariant *variant = intent_serialize(env, intent);
+	jstring package_jstr = _GET_OBJ_FIELD(intent, "packageName", "Ljava/lang/String;");
 	const char *package = (*env)->GetStringUTFChars(env, package_jstr, NULL);
 	char *object_path = g_strdup_printf("/%s", package);
 	g_strdelimit(object_path, ".", '/');

src/api-impl-jni/generated_headers/android_content_Context.h

@@ -52,10 +52,10 @@ JNIEXPORT void JNICALL Java_android_content_Context_nativeRegisterUnifiedPush
 /*
  * Class:     android_content_Context
  * Method:    nativeStartExternalService
- * Signature: (Ljava/lang/String;Landroid/content/Intent;)V
+ * Signature: (Landroid/content/Intent;)V
  */
 JNIEXPORT void JNICALL Java_android_content_Context_nativeStartExternalService
-  (JNIEnv *, jclass, jstring, jobject);
+  (JNIEnv *, jclass, jobject);
 
 #ifdef __cplusplus
 }

src/api-impl/android/content/Context.java

@@ -154,7 +154,7 @@ public class Context extends Object {
 	private static native void nativeOpenFile(int fd);
 	private static native void nativeExportUnifiedPush(String packageName);
 	private static native void nativeRegisterUnifiedPush(String token, String application);
-	private static native void nativeStartExternalService(String packageName, Intent service);
+	private static native void nativeStartExternalService(Intent service);
 
 	static Application createApplication(long native_window) throws Exception {
 		Application application;
@@ -482,23 +482,24 @@ public class Context extends Object {
 				}
 			}
 		}
-		if (intent.getAction() != null && intent.getAction().startsWith("com.google.android.c2dm")) {
-			nativeStartExternalService("com.google.android.c2dm", intent);
-			// Newer applications use a Messenger instead of a BroadcastReceiver for the return Intent.
-			// To support new and old apps with a common interface, we wrap the Messenger in a BroadcastReceiver
+		// Newer applications use a Messenger instead of a BroadcastReceiver for the GCM token return Intent.
+		// To support new and old apps with a common interface, we wrap the Messenger in a BroadcastReceiver
+		if ("com.google.android.c2dm.intent.REGISTER".equals(intent.getAction()) && intent.getParcelableExtra("google.messenger") instanceof Messenger) {
 			final Messenger messenger = (Messenger)intent.getParcelableExtra("google.messenger");
-			if (messenger != null) {
-				receiverMap.put(new IntentFilter("com.google.android.c2dm.intent.REGISTRATION"), new BroadcastReceiver() {
-					@Override
-					public void onReceive(Context context, Intent resultIntent) {
-						try {
-							messenger.send(Message.obtain(null, 0, resultIntent));
-						} catch (RemoteException e) {
-							e.printStackTrace();
-						}
+			receiverMap.put(new IntentFilter("com.google.android.c2dm.intent.REGISTRATION"), new BroadcastReceiver() {
+				@Override
+				public void onReceive(Context context, Intent resultIntent) {
+					try {
+						messenger.send(Message.obtain(null, 0, resultIntent));
+					} catch (RemoteException e) {
+						e.printStackTrace();
 					}
-				});
-			}
+				}
+			});
+		}
+		if (intent.getPackage() != null && !intent.getPackage().equals(getPackageName())) {
+			// External package. Try to start using DBus Action
+			nativeStartExternalService(intent);
 			return null;
 		}
 		if (component == null) {

src/api-impl/android/content/Intent.java

@@ -25,6 +25,7 @@ public class Intent implements Parcelable {
 	private Uri data;
 	private int flags;
 	private String type;
+	private String packageName;
 
 	public Intent() {}
 	public Intent(Intent o) {
@@ -63,7 +64,8 @@ public class Intent implements Parcelable {
 	}
 
 	public Intent setPackage(String packageName) {
-		return this; //??
+		this.packageName = packageName;
+		return this;
 	}
 
 	public Intent setType(String type) {
@@ -328,7 +330,7 @@ public class Intent implements Parcelable {
 	}
 
 	public String getPackage() {
-		return component == null ? null : component.getPackageName();
+		return packageName;
 	}
 
 	public String getScheme() {