Fix RS graphics samples/tests.

Change-Id: Id5b586a9d9bead426eb46d79a93941893f0d4925

tests/RenderScriptTests/FBOTest/src/com/android/fbotest/fbotest.rs

@@ -184,7 +184,7 @@ static void drawOffscreenResult(int posX, int posY) {
                          startX + width, startY, 0, 1, 1);
 }
 
-int root(int launchID) {
+int root(void) {
 
     rsgClearColor(1.0f, 1.0f, 1.0f, 1.0f);
     rsgClearDepth(1.0f);

tests/RenderScriptTests/ModelViewer/src/com/android/modelviewer/scenegraph.rs

@@ -46,7 +46,7 @@ void init() {
     gRotate = 0.0f;
 }
 
-int root(int launchID) {
+int root(void) {
 
     gGroup->transforms[1].w += 0.5f;
     gGroup->isDirty = 1;

tests/RenderScriptTests/ModelViewer/src/com/android/modelviewer/simplemodel.rs

@@ -130,7 +130,7 @@ void drawDescription() {
     rsgDrawText(gTextAlloc, 2 -left, height - 2 + bottom);
 }
 
-int root(int launchID) {
+int root(void) {
 
     rsgClearColor(1.0f, 1.0f, 1.0f, 1.0f);
     rsgClearDepth(1.0f);

tests/RenderScriptTests/PerfTest/src/com/android/perftest/rsbench.rs

@@ -776,7 +776,7 @@ static void drawOffscreenResult(int posX, int posY, int width, int height) {
                          startX + width, startY, 0, 1, 1);
 }
 
-int root(int launchID) {
+int root(void) {
 
     gRenderSurfaceW = rsgGetWidth();
     gRenderSurfaceH = rsgGetHeight();

tests/RenderScriptTests/tests/src/com/android/rs/test/rslist.rs

@@ -35,7 +35,7 @@ void init() {
 
 int textPos = 0;
 
-int root(int launchID) {
+int root(void) {
 
     rsgClearColor(0.0f, 0.0f, 0.0f, 0.0f);
     rsgClearDepth(1.0f);