base: Remove the string logging from CHECK().

base/synchronization/waitable_event_win.cc

 // Copyright (c) 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.
 
 #include "base/synchronization/waitable_event.h"
 
 #include <windows.h>
 #include <stddef.h>
 
 #include <algorithm>
@@ skipping 13 matching lines @@
                           reset_policy == ResetPolicy::MANUAL,
                           initial_state == InitialState::SIGNALED,
                           nullptr)) {
   // We're probably going to crash anyways if this is ever NULL, so we might as
   // well make our stack reports more informative by crashing here.
   CHECK(handle_.IsValid());
 }
 
 WaitableEvent::WaitableEvent(win::ScopedHandle handle)
     : handle_(std::move(handle)) {
-  CHECK(handle_.IsValid()) << "Tried to create WaitableEvent from NULL handle";
+  // Tried to create WaitableEvent from NULL handle
+  CHECK(handle_.IsValid());
 }
 
 WaitableEvent::~WaitableEvent() = default;
 
 void WaitableEvent::Reset() {
   ResetEvent(handle_.Get());
 }
 
 void WaitableEvent::Signal() {
   SetEvent(handle_.Get());
@@ skipping 84 matching lines @@
 
 // static
 size_t WaitableEvent::WaitMany(WaitableEvent** events, size_t count) {
   DCHECK(count) << "Cannot wait on no events";
 
   base::ThreadRestrictions::AssertWaitAllowed();
   // Record an event (the first) that this thread is blocking upon.
   base::debug::ScopedEventWaitActivity event_activity(events[0]);
 
   HANDLE handles[MAXIMUM_WAIT_OBJECTS];
-  CHECK_LE(count, static_cast<size_t>(MAXIMUM_WAIT_OBJECTS))
-      << "Can only wait on " << MAXIMUM_WAIT_OBJECTS << " with WaitMany";
+  // Can only wait on |MAXIMUM_WAIT_OBJECTS| with WaitMany
+  CHECK_LE(count, static_cast<size_t>(MAXIMUM_WAIT_OBJECTS));
 
   for (size_t i = 0; i < count; ++i)
     handles[i] = events[i]->handle();
 
   // The cast is safe because count is small - see the CHECK above.
   DWORD result =
       WaitForMultipleObjects(static_cast<DWORD>(count),
                              handles,
                              FALSE,      // don't wait for all the objects
                              INFINITE);  // no timeout
   if (result >= WAIT_OBJECT_0 + count) {
     DPLOG(FATAL) << "WaitForMultipleObjects failed";
     return 0;
   }
 
   return result - WAIT_OBJECT_0;
 }
 
 }  // namespace base