base: Remove the string logging from CHECK().

media/blink/multibuffer_unittest.cc

Index: media/blink/multibuffer_unittest.cc
diff --git a/media/blink/multibuffer_unittest.cc b/media/blink/multibuffer_unittest.cc
index ae607798dca9390a0c1bbc1dbb9d5a04e8a585c9..8f8ac31813a4294fb4f3e1f54994fb0b7d75b13e 100644
--- a/media/blink/multibuffer_unittest.cc
+++ b/media/blink/multibuffer_unittest.cc
@@ -146,8 +146,7 @@ class TestMultiBuffer : public MultiBuffer {
     IntervalMap<MultiBufferBlockId, int32_t> tmp;
     for (DataMap::iterator i = data_.begin(); i != data_.end(); ++i) {
       CHECK(i->second);  // Null poineters are not allowed in data_
-      CHECK_NE(!!pinned_[i->first], lru_->Contains(this, i->first))
-          << " i->first = " << i->first;
+      CHECK_NE(!!pinned_[i->first], lru_->Contains(this, i->first));
       tmp.IncrementInterval(i->first, i->first + 1, 1);
     }
     IntervalMap<MultiBufferBlockId, int32_t>::const_iterator tmp_iterator =
@@ -169,9 +168,10 @@ class TestMultiBuffer : public MultiBuffer {
   void CheckLRUState() {
     for (DataMap::iterator i = data_.begin(); i != data_.end(); ++i) {
       CHECK(i->second);  // Null poineters are not allowed in data_
-      CHECK_NE(!!pinned_[i->first], lru_->Contains(this, i->first))
-          << " i->first = " << i->first;
-      CHECK_EQ(1, present_[i->first]) << " i->first = " << i->first;
+                         //  i->first = |i->first|.
+      CHECK_NE(!!pinned_[i->first], lru_->Contains(this, i->first));
+      //  i->first = |i->first|
+      CHECK_EQ(1, present_[i->first]);
     }
   }