Rename ISurfaceTexture and SurfaceTexture

The C++ class names don't match what the classes do, so rename
ISurfaceTexture to IGraphicBufferProducer, and SurfaceTexture to
GLConsumer.

Bug 7736700

Change-Id: I64520a55f8c09fe6215382ea361c539a9940cba5
diff --git a/include/camera/ICamera.h b/include/camera/ICamera.h
index 3d18837..eccaa41 100644
--- a/include/camera/ICamera.h
+++ b/include/camera/ICamera.h
@@ -27,7 +27,7 @@
 namespace android {
 
 class ICameraClient;
-class ISurfaceTexture;
+class IGraphicBufferProducer;
 class Surface;
 
 class ICamera: public IInterface
@@ -49,9 +49,9 @@
     // pass the buffered Surface to the camera service
     virtual status_t        setPreviewDisplay(const sp<Surface>& surface) = 0;
 
-    // pass the buffered ISurfaceTexture to the camera service
+    // pass the buffered IGraphicBufferProducer to the camera service
     virtual status_t        setPreviewTexture(
-            const sp<ISurfaceTexture>& surfaceTexture) = 0;
+            const sp<IGraphicBufferProducer>& bufferProducer) = 0;
 
     // set the preview callback flag to affect how the received frames from
     // preview are handled.