diff -r 000000000000 -r 6474c204b198 content/media/webspeech/synth/ipc/SpeechSynthesisChild.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/media/webspeech/synth/ipc/SpeechSynthesisChild.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,181 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "SpeechSynthesisChild.h"
+#include "nsSynthVoiceRegistry.h"
+
+namespace mozilla {
+namespace dom {
+
+SpeechSynthesisChild::SpeechSynthesisChild()
+{
+  MOZ_COUNT_CTOR(SpeechSynthesisChild);
+}
+
+SpeechSynthesisChild::~SpeechSynthesisChild()
+{
+  MOZ_COUNT_DTOR(SpeechSynthesisChild);
+}
+
+bool
+SpeechSynthesisChild::RecvVoiceAdded(const RemoteVoice& aVoice)
+{
+  nsSynthVoiceRegistry::RecvAddVoice(aVoice);
+  return true;
+}
+
+bool
+SpeechSynthesisChild::RecvVoiceRemoved(const nsString& aUri)
+{
+  nsSynthVoiceRegistry::RecvRemoveVoice(aUri);
+  return true;
+}
+
+bool
+SpeechSynthesisChild::RecvSetDefaultVoice(const nsString& aUri,
+                                          const bool& aIsDefault)
+{
+  nsSynthVoiceRegistry::RecvSetDefaultVoice(aUri, aIsDefault);
+  return true;
+}
+
+PSpeechSynthesisRequestChild*
+SpeechSynthesisChild::AllocPSpeechSynthesisRequestChild(const nsString& aText,
+                                                        const nsString& aLang,
+                                                        const nsString& aUri,
+                                                        const float& aVolume,
+                                                        const float& aRate,
+                                                        const float& aPitch)
+{
+  MOZ_CRASH("Caller is supposed to manually construct a request!");
+}
+
+bool
+SpeechSynthesisChild::DeallocPSpeechSynthesisRequestChild(PSpeechSynthesisRequestChild* aActor)
+{
+  delete aActor;
+  return true;
+}
+
+// SpeechSynthesisRequestChild
+
+SpeechSynthesisRequestChild::SpeechSynthesisRequestChild(SpeechTaskChild* aTask)
+  : mTask(aTask)
+{
+  mTask->mActor = this;
+  MOZ_COUNT_CTOR(SpeechSynthesisRequestChild);
+}
+
+SpeechSynthesisRequestChild::~SpeechSynthesisRequestChild()
+{
+  MOZ_COUNT_DTOR(SpeechSynthesisRequestChild);
+}
+
+bool
+SpeechSynthesisRequestChild::RecvOnStart()
+{
+  mTask->DispatchStartImpl();
+  return true;
+}
+
+bool
+SpeechSynthesisRequestChild::Recv__delete__(const bool& aIsError,
+                                            const float& aElapsedTime,
+                                            const uint32_t& aCharIndex)
+{
+  mTask->mActor = nullptr;
+
+  if (aIsError) {
+    mTask->DispatchErrorImpl(aElapsedTime, aCharIndex);
+  } else {
+    mTask->DispatchEndImpl(aElapsedTime, aCharIndex);
+  }
+
+  return true;
+}
+
+bool
+SpeechSynthesisRequestChild::RecvOnPause(const float& aElapsedTime,
+                                         const uint32_t& aCharIndex)
+{
+  mTask->DispatchPauseImpl(aElapsedTime, aCharIndex);
+  return true;
+}
+
+bool
+SpeechSynthesisRequestChild::RecvOnResume(const float& aElapsedTime,
+                                          const uint32_t& aCharIndex)
+{
+  mTask->DispatchResumeImpl(aElapsedTime, aCharIndex);
+  return true;
+}
+
+bool
+SpeechSynthesisRequestChild::RecvOnBoundary(const nsString& aName,
+                                            const float& aElapsedTime,
+                                            const uint32_t& aCharIndex)
+{
+  mTask->DispatchBoundaryImpl(aName, aElapsedTime, aCharIndex);
+  return true;
+}
+
+bool
+SpeechSynthesisRequestChild::RecvOnMark(const nsString& aName,
+                                        const float& aElapsedTime,
+                                        const uint32_t& aCharIndex)
+{
+  mTask->DispatchMarkImpl(aName, aElapsedTime, aCharIndex);
+  return true;
+}
+
+// SpeechTaskChild
+
+SpeechTaskChild::SpeechTaskChild(SpeechSynthesisUtterance* aUtterance)
+  : nsSpeechTask(aUtterance)
+{
+}
+
+NS_IMETHODIMP
+SpeechTaskChild::Setup(nsISpeechTaskCallback* aCallback,
+                       uint32_t aChannels, uint32_t aRate, uint8_t argc)
+{
+  MOZ_CRASH("Should never be called from child");
+}
+
+NS_IMETHODIMP
+SpeechTaskChild::SendAudio(JS::Handle<JS::Value> aData, JS::Handle<JS::Value> aLandmarks,
+                           JSContext* aCx)
+{
+  MOZ_CRASH("Should never be called from child");
+}
+
+NS_IMETHODIMP
+SpeechTaskChild::SendAudioNative(int16_t* aData, uint32_t aDataLen)
+{
+  MOZ_CRASH("Should never be called from child");
+}
+
+void
+SpeechTaskChild::Pause()
+{
+  MOZ_ASSERT(mActor);
+  mActor->SendPause();
+}
+
+void
+SpeechTaskChild::Resume()
+{
+  MOZ_ASSERT(mActor);
+  mActor->SendResume();
+}
+
+void
+SpeechTaskChild::Cancel()
+{
+  MOZ_ASSERT(mActor);
+  mActor->SendCancel();
+}
+
+} // namespace dom
+} // namespace mozilla