Adding support for per vertex opacity on textured layer

cc/test/geometry_test_utils.h

Index: cc/test/geometry_test_utils.h
diff --git a/cc/test/geometry_test_utils.h b/cc/test/geometry_test_utils.h
index 27be79085e9b564b83c1f60d1e0bdb59d309b4ed..92a37c3d8ce0e7c62060d986c1265bd9718e069d 100644
--- a/cc/test/geometry_test_utils.h
+++ b/cc/test/geometry_test_utils.h
@@ -50,6 +50,13 @@ do { \
     EXPECT_EQ((expected).y(), (actual).y()); \
 } while (false)
 
+#define EXPECT_FLOAT_ARRAY_EQ(expected, actual, count) \
+do { \
+    for (int i = 0; i < count; i++) {\
+        EXPECT_FLOAT_EQ((expected)[i], (actual)[i]); \
+    }\
+} while (false)
+
 // This is a function rather than a macro because when this is included as a macro
 // in bulk, it causes a significant slow-down in compilation time. This problem
 // exists with both gcc and clang, and bugs have been filed at