base: Remove the string logging from CHECK().

tools/gn/ninja_target_writer.cc

Index: tools/gn/ninja_target_writer.cc
diff --git a/tools/gn/ninja_target_writer.cc b/tools/gn/ninja_target_writer.cc
index 2b30d6514398ed19ea43dd793e8addcb917a30b3..1c201ef751750c27bfc33f3df31a21ab0635d249 100644
--- a/tools/gn/ninja_target_writer.cc
+++ b/tools/gn/ninja_target_writer.cc
@@ -90,7 +90,8 @@ std::string NinjaTargetWriter::RunAndWriteFile(const Target* target) {
     NinjaBinaryTargetWriter writer(target, rules);
     writer.Run();
   } else {
-    CHECK(0) << "Output type of target not handled.";
+    // Output type of target not handled.
+    CHECK(0);
   }
 
   if (needs_file_write) {
@@ -181,9 +182,8 @@ void NinjaTargetWriter::WriteSharedVars(const SubstitutionBits& bits) {
 
 OutputFile NinjaTargetWriter::WriteInputDepsStampAndGetDep(
     const std::vector<const Target*>& extra_hard_deps) const {
-  CHECK(target_->toolchain())
-      << "Toolchain not set on target "
-      << target_->label().GetUserVisibleName(true);
+  // Toolchain not set on target |target_->label().GetUserVisibleName(true)|.
+  CHECK(target_->toolchain());
 
   // ----------
   // Collect all input files that are input deps of this target. Knowing the
@@ -302,8 +302,8 @@ void NinjaTargetWriter::WriteStampForTarget(
 
   // First validate that the target's dependency is a stamp file. Otherwise,
   // we shouldn't have gotten here!
-  CHECK(base::EndsWith(stamp_file.value(), ".stamp",
-                       base::CompareCase::INSENSITIVE_ASCII))
+  LOG_IF(FATAL, !base::EndsWith(stamp_file.value(), ".stamp",
+                                base::CompareCase::INSENSITIVE_ASCII))
       << "Output should end in \".stamp\" for stamp file output. Instead got: "
       << "\"" << stamp_file.value() << "\"";