Set the secureness when creating displays

This change makes use of the new 'secure' argument to the
ISurfaceComposer::createDisplay method.  In this change both the overlay and
wifi displays are hard-coded to be non-secure displays.

Bug: 7368436
Change-Id: Ib65312f2adab5104d8deefbfc32af9dc106a9129

Author: Jamie Gennis

core/java/android/view/Surface.java

@@ -258,7 +258,7 @@ private static native Bitmap nativeScreenshot(IBinder displayToken,
     private native void nativeSetLayerStack(int layerStack);
 
     private static native IBinder nativeGetBuiltInDisplay(int physicalDisplayId);
-    private static native IBinder nativeCreateDisplay(String name);
+    private static native IBinder nativeCreateDisplay(String name, boolean secure);
     private static native void nativeSetDisplaySurface(
             IBinder displayToken, Surface surface);
     private static native void nativeSetDisplayLayerStack(
@@ -597,11 +597,11 @@ public static IBinder getBuiltInDisplay(int builtInDisplayId) {
     }
 
     /** @hide */
-    public static IBinder createDisplay(String name) {
+    public static IBinder createDisplay(String name, boolean secure) {
         if (name == null) {
             throw new IllegalArgumentException("name must not be null");
         }
-        return nativeCreateDisplay(name);
+        return nativeCreateDisplay(name, secure);
     }
 
     /** @hide */

core/jni/android_view_Surface.cpp

@@ -653,9 +653,11 @@ static jobject nativeGetBuiltInDisplay(JNIEnv* env, jclass clazz, jint id) {
     return javaObjectForIBinder(env, token);
 }
 
-static jobject nativeCreateDisplay(JNIEnv* env, jclass clazz, jstring nameObj) {
+static jobject nativeCreateDisplay(JNIEnv* env, jclass clazz, jstring nameObj,
+        jboolean secure) {
     ScopedUtfChars name(env, nameObj);
-    sp<IBinder> token(SurfaceComposerClient::createDisplay(String8(name.c_str())));
+    sp<IBinder> token(SurfaceComposerClient::createDisplay(
+            String8(name.c_str()), bool(secure)));
     return javaObjectForIBinder(env, token);
 }
 
@@ -845,7 +847,7 @@ static JNINativeMethod gSurfaceMethods[] = {
             (void*)nativeSetLayerStack },
     {"nativeGetBuiltInDisplay", "(I)Landroid/os/IBinder;",
             (void*)nativeGetBuiltInDisplay },
-    {"nativeCreateDisplay", "(Ljava/lang/String;)Landroid/os/IBinder;",
+    {"nativeCreateDisplay", "(Ljava/lang/String;Z)Landroid/os/IBinder;",
             (void*)nativeCreateDisplay },
     {"nativeSetDisplaySurface", "(Landroid/os/IBinder;Landroid/view/Surface;)V",
             (void*)nativeSetDisplaySurface },

services/java/com/android/server/display/OverlayDisplayAdapter.java

@@ -282,7 +282,7 @@ public void dismissLocked() {
         @Override
         public void onWindowCreated(SurfaceTexture surfaceTexture, float refreshRate) {
             synchronized (getSyncRoot()) {
-                IBinder displayToken = Surface.createDisplay(mName);
+                IBinder displayToken = Surface.createDisplay(mName, false);
                 mDevice = new OverlayDisplayDevice(displayToken, mName,
                         mWidth, mHeight, refreshRate, mDensityDpi, surfaceTexture);
 

services/java/com/android/server/display/WifiDisplayAdapter.java

@@ -292,7 +292,7 @@ private void handleConnectLocked(WifiDisplay display,
         float refreshRate = 60.0f; // TODO: get this for real
 
         String name = display.getFriendlyDisplayName();
-        IBinder displayToken = Surface.createDisplay(name);
+        IBinder displayToken = Surface.createDisplay(name, false);
         mDisplayDevice = new WifiDisplayDevice(displayToken, name, width, height,
                 refreshRate, deviceFlags, surface);
         sendDisplayDeviceEventLocked(mDisplayDevice, DISPLAY_DEVICE_EVENT_ADDED);