[Mac]: Enable speech sub-menu under the edit menu and pipe it through to the renderer.

content/browser/renderer_host/render_widget_host_impl.cc

Index: content/browser/renderer_host/render_widget_host_impl.cc
===================================================================
--- content/browser/renderer_host/render_widget_host_impl.cc	(revision 148651)
+++ content/browser/renderer_host/render_widget_host_impl.cc	(working copy)
@@ -322,6 +322,7 @@
                         OnAcceleratedSurfaceSetTransportDIB)
     IPC_MESSAGE_HANDLER(ViewHostMsg_AcceleratedSurfaceBuffersSwapped,
                         OnAcceleratedSurfaceBuffersSwapped)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_SpeakText, OnMsgSpeakText)
 #endif
 #if defined(TOOLKIT_GTK)
     IPC_MESSAGE_HANDLER(ViewHostMsg_CreatePluginContainer,
@@ -837,10 +838,10 @@
     return;
 
   if (gesture_event_pending_) {
-   if (coalesced_gesture_events_.empty() ||
-       !ShouldCoalesceGestureEvents(coalesced_gesture_events_.back(),
-                                    gesture_event)) {
-     coalesced_gesture_events_.push_back(gesture_event);
+    if (coalesced_gesture_events_.empty() ||
+        !ShouldCoalesceGestureEvents(coalesced_gesture_events_.back(),
+                                     gesture_event)) {
+      coalesced_gesture_events_.push_back(gesture_event);
     } else {
       WebGestureEvent* last_gesture_event =
           &coalesced_gesture_events_.back();
@@ -1229,7 +1230,7 @@
       base::i18n::WrapStringWithRTLFormatting(&wrapped_tooltip_text);
     }
   }
-  if (GetView())
+  if (view_)
     view_->SetTooltipText(wrapped_tooltip_text);
 }
 
@@ -1610,7 +1611,6 @@
 void RenderWidgetHostImpl::OnMsgLockMouse(bool user_gesture,
                                           bool last_unlocked_by_target,
                                           bool privileged) {
-
   if (pending_mouse_lock_request_) {
     Send(new ViewMsg_LockMouse_ACK(routing_id_, false));
     return;
@@ -1872,6 +1872,14 @@
   Send(new ViewMsg_SelectAll(GetRoutingID()));
   RecordAction(UserMetricsAction("SelectAll"));
 }
+
+void RenderWidgetHostImpl::SpeakSelection() {
+#if defined(OS_MACOSX)
+  Send(new ViewMsg_SpeakSelection(GetRoutingID()));
+  RecordAction(UserMetricsAction("SpeakSelection"));
+#endif
+}
+
 bool RenderWidgetHostImpl::GotResponseToLockMouseRequest(bool allowed) {
   if (!allowed) {
     RejectMouseLockOrUnlockIfNecessary();