base: Remove the string logging from CHECK().

ui/events/gesture_detection/gesture_provider_unittest.cc

 // Copyright 2014 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 "ui/events/gesture_detection/gesture_provider.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 101 matching lines @@
       case 3:
         return MockMotionEvent(action,
                                event_time,
                                positions[0].x(),
                                positions[0].y(),
                                positions[1].x(),
                                positions[1].y(),
                                positions[2].x(),
                                positions[2].y());
       default:
-        CHECK(false) << "MockMotionEvent only supports 1-3 pointers";
+        // MockMotionEvent only supports 1-3 pointers
+        CHECK(false);
         return MockMotionEvent();
     }
   }
 
   static MockMotionEvent ObtainMotionEvent(base::TimeTicks event_time,
                                            MotionEvent::Action action) {
     return ObtainMotionEvent(event_time, action, kFakeCoordX, kFakeCoordY);
   }
 
   // Test
@@ skipping 2692 matching lines @@
   event = ObtainMotionEvent(event_time, MotionEvent::ACTION_DOWN, kFakeCoordX,
                             kFakeCoordY + GetTouchSlop() / 2);
   EXPECT_TRUE(gesture_provider_->OnTouchEvent(event));
   event = ObtainMotionEvent(event_time, MotionEvent::ACTION_UP);
   EXPECT_TRUE(gesture_provider_->OnTouchEvent(event));
   EXPECT_EQ(ET_GESTURE_TAP, GetMostRecentGestureEventType());
   EXPECT_EQ(1, GetMostRecentGestureEvent().details.tap_count());
 }
 
 }  // namespace ui