Migrate most of cc/ from WebKit::WebTransformationMatrix to gfx::Transform

cc/test/geometry_test_utils.h

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_TEST_GEOMETRY_TEST_UTILS_H_
 #define CC_TEST_GEOMETRY_TEST_UTILS_H_
 
+namespace gfx {
+class Transform;
+}
+
 namespace WebKit {
 class WebTransformationMatrix;
 }
 
 namespace WebKitTests {
 
 // These are macros instead of functions so that we get useful line numbers where a test failed.
 #define EXPECT_FLOAT_RECT_EQ(expected, actual) \
 do { \
     EXPECT_FLOAT_EQ((expected).x(), (actual).x()); \
@@ skipping 25 matching lines @@
 #define EXPECT_VECTOR_EQ(expected, actual) \
 do { \
     EXPECT_EQ((expected).x(), (actual).x()); \
     EXPECT_EQ((expected).y(), (actual).y()); \
 } 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
 // http://llvm.org/bugs/show_bug.cgi?id=13651 and http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54337
+void ExpectTransformationMatrixEq(const gfx::Transform& expected,
+                                  const gfx::Transform& actual);
+
 void ExpectTransformationMatrixEq(const WebKit::WebTransformationMatrix& expected,
                                   const WebKit::WebTransformationMatrix& actual);
 
 #define EXPECT_TRANSFORMATION_MATRIX_EQ(expected, actual)            \
     {                                                                \
         SCOPED_TRACE("");                                            \
         WebKitTests::ExpectTransformationMatrixEq(expected, actual); \
     }
 
 } // namespace WebKitTests
 
 #endif  // CC_TEST_GEOMETRY_TEST_UTILS_H_