Add RTC_ prefix to (D)CHECKs and related macros.

webrtc/system_wrappers/source/tick_util.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 57 matching lines @@
 #endif
   result.ticks_ = 1000000000LL * static_cast<int64_t>(ts.tv_sec) +
       static_cast<int64_t>(ts.tv_nsec);
 #elif defined(WEBRTC_MAC)
   static mach_timebase_info_data_t timebase;
   if (timebase.denom == 0) {
     // Get the timebase if this is the first time we run.
     // Recommended by Apple's QA1398.
     kern_return_t retval = mach_timebase_info(&timebase);
     if (retval != KERN_SUCCESS) {
-      // TODO(wu): Implement CHECK similar to chrome for all the platforms.
-      // Then replace this with a CHECK(retval == KERN_SUCCESS);
+      // TODO(wu): Implement RTC_CHECK for all the platforms. Then replace this
+      // with a RTC_CHECK_EQ(retval, KERN_SUCCESS);
 #ifndef WEBRTC_IOS
       asm("int3");
 #else
       __builtin_trap();
 #endif  // WEBRTC_IOS
     }
   }
   // Use timebase to convert absolute time tick units into nanoseconds.
   result.ticks_ = mach_absolute_time() * timebase.numer / timebase.denom;
 #else
   struct timeval tv;
   gettimeofday(&tv, NULL);
   result.ticks_ = 1000000LL * static_cast<int64_t>(tv.tv_sec) +
       static_cast<int64_t>(tv.tv_usec);
 #endif
   return result.ticks_;
 }
 
 }  // namespace webrtc