base: Remove the string logging from CHECK().

media/audio/fake_audio_input_stream.cc

Index: media/audio/fake_audio_input_stream.cc
diff --git a/media/audio/fake_audio_input_stream.cc b/media/audio/fake_audio_input_stream.cc
index 52d7218d2870da974913803fe97a1989f290f4e3..1ef31a9e10c130bb7dce5153f052092123ed37e1 100644
--- a/media/audio/fake_audio_input_stream.cc
+++ b/media/audio/fake_audio_input_stream.cc
@@ -116,15 +116,14 @@ std::unique_ptr<AudioSourceCallback> FakeAudioInputStream::ChooseSource() {
     base::CommandLine::StringVector parameters =
         base::SplitString(switch_value, FILE_PATH_LITERAL("%"),
                           base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
-    CHECK(parameters.size() > 0) << "You must pass <file>[%noloop] to  --"
-                                 << switches::kUseFileForFakeAudioCapture
-                                 << ".";
+    LOG_IF(FATAL, parameters.empty()) << "You must pass <file>[%noloop] to  --"
+                                      << switches::kUseFileForFakeAudioCapture
+                                      << ".";
+
     base::FilePath path_to_wav_file = base::FilePath(parameters[0]);
     bool looping = true;
     if (parameters.size() == 2) {
-      CHECK(parameters[1] == FILE_PATH_LITERAL("noloop"))
-          << "Unknown parameter " << parameters[1] << " to "
-          << switches::kUseFileForFakeAudioCapture << ".";
+      CHECK(parameters[1] == FILE_PATH_LITERAL("noloop"));
       looping = false;
     }
     return base::MakeUnique<FileSource>(params_, path_to_wav_file, looping);