Delete all use of tick_util.h.

webrtc/modules/video_processing/test/deflickering_test.cc

Index: webrtc/modules/video_processing/test/deflickering_test.cc
diff --git a/webrtc/modules/video_processing/test/deflickering_test.cc b/webrtc/modules/video_processing/test/deflickering_test.cc
index 5ff5692cce9cb04b621ed8bd2daa120d16475302..6e65aced28b5db4571e0d57e3f8680ed4240b9d7 100644
--- a/webrtc/modules/video_processing/test/deflickering_test.cc
+++ b/webrtc/modules/video_processing/test/deflickering_test.cc
@@ -13,10 +13,10 @@
 
 #include <memory>
 
+#include "webrtc/base/timeutils.h"
 #include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
 #include "webrtc/modules/video_processing/include/video_processing.h"
 #include "webrtc/modules/video_processing/test/video_processing_unittest.h"
-#include "webrtc/system_wrappers/include/tick_util.h"
 #include "webrtc/test/testsupport/fileutils.h"
 
 namespace webrtc {
@@ -50,9 +50,9 @@ TEST_F(VideoProcessingTest, Deflickering) {
   printf("\nRun time [us / frame]:\n");
   std::unique_ptr<uint8_t[]> video_buffer(new uint8_t[frame_length_]);
   for (uint32_t run_idx = 0; run_idx < NumRuns; run_idx++) {
-    TickTime t0;
-    TickTime t1;
-    TickInterval acc_ticks;
+    int64_t t0;
+    int64_t t1;
+    int64_t acc_ticks = 0;
     uint32_t timeStamp = 1;
 
     frameNum = 0;
@@ -63,12 +63,12 @@ TEST_F(VideoProcessingTest, Deflickering) {
                                  height_, 0, kVideoRotation_0, &video_frame_));
       video_frame_.set_timestamp(timeStamp);
 
-      t0 = TickTime::Now();
+      t0 = rtc::TimeNanos();
       VideoProcessing::FrameStats stats;
       vp_->GetFrameStats(video_frame_, &stats);
       EXPECT_GT(stats.num_pixels, 0u);
       ASSERT_EQ(0, vp_->Deflickering(&video_frame_, &stats));
-      t1 = TickTime::Now();
+      t1 = rtc::TimeNanos();
       acc_ticks += (t1 - t0);
 
       if (run_idx == 0) {
@@ -80,11 +80,13 @@ TEST_F(VideoProcessingTest, Deflickering) {
     }
     ASSERT_NE(0, feof(source_file_)) << "Error reading source file";
 
-    printf("%u\n", static_cast<int>(acc_ticks.Microseconds() / frameNum));
-    if (acc_ticks.Microseconds() < min_runtime || run_idx == 0) {
-      min_runtime = acc_ticks.Microseconds();
+    int64_t acc_us = acc_ticks / rtc::kNumNanosecsPerMicrosec;
+    printf("%u\n", static_cast<int>(
+        acc_us / frameNum));
+    if (acc_us < min_runtime || run_idx == 0) {
+      min_runtime = acc_us;
     }
-    avg_runtime += acc_ticks.Microseconds();
+    avg_runtime += acc_us;
 
     rewind(source_file_);
   }