Fix compilation failures on OSX standalone builds

src/tests/perf_tests/ANGLEPerfTest.cpp

@@ -3,13 +3,17 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
+// ANGLEPerfTests:
+//   Base class for google test performance tests
+//
 
 #include "ANGLEPerfTest.h"
 
 #include "third_party/perf/perf_test.h"
 
-#include <iostream>
 #include <cassert>
+#include <cmath>
+#include <iostream>
 
 ANGLEPerfTest::ANGLEPerfTest(const std::string &name, const std::string &suffix)
     : mName(name),

src/tests/perf_tests/ANGLEPerfTest.h

@@ -10,19 +10,20 @@
 #ifndef PERF_TESTS_ANGLE_PERF_TEST_H_
 #define PERF_TESTS_ANGLE_PERF_TEST_H_
 
-#include <gtest/gtest.h>
 #include <string>
 #include <vector>
+
+#include <gtest/gtest.h>
 #include <EGL/egl.h>
 #include <EGL/eglext.h>
 
-#include "EGLWindow.h"
-#include "OSWindow.h"
-#include "Timer.h"
 #include "common/angleutils.h"
 #include "common/debug.h"
+#include "EGLWindow.h"
+#include "OSWindow.h"
 #include "test_utils/angle_test_configs.h"
 #include "test_utils/angle_test_instantiate.h"
+#include "Timer.h"
 
 class Event;
 

src/tests/perf_tests/InstancingPerf.cpp

@@ -7,6 +7,7 @@
 //   Performance tests for ANGLE instanced draw calls.
 //
 
+#include <cmath>
 #include <sstream>
 
 #include "ANGLEPerfTest.h"
@@ -24,7 +25,7 @@ namespace
 float AnimationSignal(float t)
 {
     float l = t / 2.0f;
-    float f = l - floor(l);
+    float f = l - std::floor(l);
     return (f > 0.5f ? 1.0f - f : f) * 4.0f - 1.0f;
 }