setPlatformSynthesizer   64 Source/modules/speech/SpeechSynthesis.h     void setPlatformSynthesizer(PassOwnPtr<PlatformSpeechSynthesizer>);
setPlatformSynthesizer   50 Source/modules/speech/testing/InternalsSpeechSynthesis.cpp     synthesis->setPlatformSynthesizer(PlatformSpeechSynthesizerMock::create(synthesis));