PlatformSpeechSynthesizer 46 Source/platform/speech/PlatformSpeechSynthesizer.cpp PlatformSpeechSynthesizer::PlatformSpeechSynthesizer(PlatformSpeechSynthesizerClient* client) PlatformSpeechSynthesizer 53 Source/platform/speech/PlatformSpeechSynthesizer.cpp PlatformSpeechSynthesizer::~PlatformSpeechSynthesizer()