Fix libgui tests.

Update IGraphicsBufferProducerTest to the new maximum enum value which is now
NATIVE_WINDOW_BUFFER_AGE. Update SurfaceTextureGLToGL_test to use the correct
counts for GraphicsBuffer refs.

Buf: 18138368

Change-Id: Ie2f7e00b414d63100b16944e3ab36b1ffceecd57
diff --git a/libs/gui/tests/IGraphicBufferProducer_test.cpp b/libs/gui/tests/IGraphicBufferProducer_test.cpp
index ff58420..4ef9a69 100644
--- a/libs/gui/tests/IGraphicBufferProducer_test.cpp
+++ b/libs/gui/tests/IGraphicBufferProducer_test.cpp
@@ -299,7 +299,7 @@
     ASSERT_NO_FATAL_FAILURE(ConnectProducer());
 
     // One past the end of the last 'query' enum value. Update this if we add more enums.
-    const int NATIVE_WINDOW_QUERY_LAST_OFF_BY_ONE = NATIVE_WINDOW_DEFAULT_DATASPACE + 1;
+    const int NATIVE_WINDOW_QUERY_LAST_OFF_BY_ONE = NATIVE_WINDOW_BUFFER_AGE + 1;
 
     int value;
     // What was out of range
diff --git a/libs/gui/tests/SurfaceTextureGLToGL_test.cpp b/libs/gui/tests/SurfaceTextureGLToGL_test.cpp
index f4c7961..6edbfb8 100644
--- a/libs/gui/tests/SurfaceTextureGLToGL_test.cpp
+++ b/libs/gui/tests/SurfaceTextureGLToGL_test.cpp
@@ -188,10 +188,10 @@
     // This test should have the only reference to buffer 0.
     EXPECT_EQ(1, buffers[0]->getStrongCount());
 
-    // The GLConsumer should hold a single reference to buffer 1 in its
-    // mCurrentBuffer member.  All of the references in the slots should have
-    // been released.
-    EXPECT_EQ(2, buffers[1]->getStrongCount());
+    // The GLConsumer should hold one reference to buffer 1 in its
+    // mCurrentTextureImage member and another reference in mEglSlots. The third
+    // reference is in this test.
+    EXPECT_EQ(3, buffers[1]->getStrongCount());
 }
 
 TEST_F(SurfaceTextureGLToGLTest, EglDestroySurfaceAfterAbandonUnrefsBuffers) {
@@ -235,14 +235,19 @@
     ASSERT_EQ(EGL_SUCCESS, eglGetError());
     mProducerEglSurface = EGL_NO_SURFACE;
 
-    EXPECT_EQ(1, buffers[0]->getStrongCount());
     EXPECT_EQ(1, buffers[1]->getStrongCount());
 
     // Depending on how lazily the GL driver dequeues buffers, we may end up
-    // with either two or three total buffers.  If there are three, make sure
-    // the last one was properly down-ref'd.
+    // with either two or three total buffers.  If there are three, each entry
+    // of the buffers array will be unique and there should only be one
+    // reference (the one in this test). If there are two the first and last
+    // element in the array will be equal meaning that buffer representing both
+    // 0 and 2 will have two references (one for 0 and one for 2).
     if (buffers[2] != buffers[0]) {
+        EXPECT_EQ(1, buffers[0]->getStrongCount());
         EXPECT_EQ(1, buffers[2]->getStrongCount());
+    } else {
+        EXPECT_EQ(2, buffers[0]->getStrongCount());
     }
 }