Add SafeClamp(), which accepts args of different types

webrtc/modules/audio_processing/aec3/shadow_filter_update_gain_unittest.cc

Index: webrtc/modules/audio_processing/aec3/shadow_filter_update_gain_unittest.cc
diff --git a/webrtc/modules/audio_processing/aec3/shadow_filter_update_gain_unittest.cc b/webrtc/modules/audio_processing/aec3/shadow_filter_update_gain_unittest.cc
index 82850f80d646c494163231e1c0a1ef3decf23ca9..62e41856b480987cfe2779a1a4b9b7608ca41847 100644
--- a/webrtc/modules/audio_processing/aec3/shadow_filter_update_gain_unittest.cc
+++ b/webrtc/modules/audio_processing/aec3/shadow_filter_update_gain_unittest.cc
@@ -16,9 +16,10 @@
 #include <vector>
 
 #include "webrtc/base/random.h"
+#include "webrtc/base/safe_minmax.h"
 #include "webrtc/modules/audio_processing/aec3/adaptive_fir_filter.h"
-#include "webrtc/modules/audio_processing/aec3/aec_state.h"
 #include "webrtc/modules/audio_processing/aec3/aec3_common.h"
+#include "webrtc/modules/audio_processing/aec3/aec_state.h"
 #include "webrtc/modules/audio_processing/test/echo_canceller_test_tools.h"
 #include "webrtc/test/gtest.h"
 
@@ -75,9 +76,8 @@ void RunFilterUpdateTest(int num_blocks_to_process,
     std::transform(y.begin(), y.end(), s.begin() + kFftLengthBy2,
                    e_shadow.begin(),
                    [&](float a, float b) { return a - b * kScale; });
-    std::for_each(e_shadow.begin(), e_shadow.end(), [](float& a) {
-      a = std::max(std::min(a, 32767.0f), -32768.0f);
-    });
+    std::for_each(e_shadow.begin(), e_shadow.end(),
+                  [](float& a) { a = rtc::SafeClamp(-32768.f, 32767.f, a); });
     fft.ZeroPaddedFft(e_shadow, &E_shadow);
 
     shadow_gain.Compute(render_buffer, render_signal_analyzer, E_shadow,