Move PlatformSpeech stuff to platform/

Source/platform/speech/PlatformSpeechSynthesisUtterance.h

Index: Source/platform/speech/PlatformSpeechSynthesisUtterance.h
diff --git a/Source/core/platform/PlatformSpeechSynthesisUtterance.h b/Source/platform/speech/PlatformSpeechSynthesisUtterance.h
similarity index 94%
rename from Source/core/platform/PlatformSpeechSynthesisUtterance.h
rename to Source/platform/speech/PlatformSpeechSynthesisUtterance.h
index 7d1dee271fbaf4743c0fdae292d6df02bf6bde51..fb89101b51d9fba11d7543b4764c814bc14cbba8 100644
--- a/Source/core/platform/PlatformSpeechSynthesisUtterance.h
+++ b/Source/platform/speech/PlatformSpeechSynthesisUtterance.h
@@ -26,7 +26,8 @@
 #ifndef PlatformSpeechSynthesisUtterance_h
 #define PlatformSpeechSynthesisUtterance_h
 
-#include "core/platform/PlatformSpeechSynthesisVoice.h"
+#include "platform/PlatformExport.h"
+#include "platform/speech/PlatformSpeechSynthesisVoice.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
@@ -40,7 +41,7 @@ protected:
     virtual ~PlatformSpeechSynthesisUtteranceClient() { }
 };
 
-class PlatformSpeechSynthesisUtterance : public RefCounted<PlatformSpeechSynthesisUtterance> {
+class PLATFORM_EXPORT PlatformSpeechSynthesisUtterance : public RefCounted<PlatformSpeechSynthesisUtterance> {
 public:
     static PassRefPtr<PlatformSpeechSynthesisUtterance> create(PlatformSpeechSynthesisUtteranceClient*);