remove more unused references to ISurface

Change-Id: I2201f1ca2bb8f203a081d94a0134f798778dfbef
diff --git a/include/surfaceflinger/Surface.h b/include/surfaceflinger/Surface.h
index a59d9e5..3923e61 100644
--- a/include/surfaceflinger/Surface.h
+++ b/include/surfaceflinger/Surface.h
@@ -102,10 +102,6 @@
     friend class Test;
     // videoEditor preview classes
     friend class VideoEditorPreviewController;
-
-    const sp<ISurface>& getISurface() const { return mSurface; }
-    
-
     friend class Surface;
 
     SurfaceControl(
@@ -169,6 +165,7 @@
     // setSwapRectangle() is intended to be used by GL ES clients
     void        setSwapRectangle(const Rect& r);
 
+    sp<IBinder> asBinder() const;
 
 private:
     /*
@@ -242,7 +239,6 @@
      */
     void init();
     status_t validate(bool inCancelBuffer = false) const;
-    sp<ISurface> getISurface() const;
 
     // When the buffer pool is a fixed size we want to make sure SurfaceFlinger
     // won't stall clients, so we require an extra buffer.
diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 0dfbf01..44d9b4b 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -502,8 +502,8 @@
     return NO_ERROR;
 }
 
-sp<ISurface> Surface::getISurface() const {
-    return mSurface;
+sp<IBinder> Surface::asBinder() const {
+    return mSurface!=0 ? mSurface->asBinder() : 0;
 }
 
 // ----------------------------------------------------------------------------
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp
index f3c9959..7e3c643 100644
--- a/services/camera/libcameraservice/CameraService.cpp
+++ b/services/camera/libcameraservice/CameraService.cpp
@@ -472,15 +472,15 @@
     result = NO_ERROR;
 
     // return if no change in surface.
-    // asBinder() is safe on NULL (returns NULL)
-    if (getISurface(surface)->asBinder() == mSurface) {
+    sp<IBinder> binder(surface != 0 ? surface->asBinder() : 0);
+    if (binder == mSurface) {
         return result;
     }
 
     if (mSurface != 0) {
         LOG1("clearing old preview surface %p", mSurface.get());
     }
-    mSurface = getISurface(surface)->asBinder();
+    mSurface = binder;
     mPreviewWindow = surface;
 
     // If preview has been already started, register preview
@@ -1241,12 +1241,4 @@
     return NO_ERROR;
 }
 
-sp<ISurface> CameraService::getISurface(const sp<Surface>& surface) {
-    if (surface != 0) {
-        return surface->getISurface();
-    } else {
-        return sp<ISurface>(0);
-    }
-}
-
 }; // namespace android
diff --git a/services/camera/libcameraservice/CameraService.h b/services/camera/libcameraservice/CameraService.h
index 28e8cc0..9a9ab0e 100644
--- a/services/camera/libcameraservice/CameraService.h
+++ b/services/camera/libcameraservice/CameraService.h
@@ -79,12 +79,6 @@
     sp<MediaPlayer>     mSoundPlayer[NUM_SOUNDS];
     int                 mSoundRef;  // reference count (release all MediaPlayer when 0)
 
-    // Used by Client objects to extract the ISurface from a Surface object.
-    // This is used because making Client a friend class of Surface would
-    // require including this header in Surface.h since Client is a nested
-    // class.
-    static sp<ISurface> getISurface(const sp<Surface>& surface);
-
     class Client : public BnCamera
     {
     public:
diff --git a/services/surfaceflinger/tests/resize/resize.cpp b/services/surfaceflinger/tests/resize/resize.cpp
index 0ccca77..18c54b3 100644
--- a/services/surfaceflinger/tests/resize/resize.cpp
+++ b/services/surfaceflinger/tests/resize/resize.cpp
@@ -29,13 +29,6 @@
 using namespace android;
 
 namespace android {
-class Test {
-public:
-    static const sp<ISurface>& getISurface(const sp<Surface>& s) {
-        return s->getISurface();
-    }
-};
-};
 
 int main(int argc, char** argv)
 {