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

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
===================================================================
--- content/renderer/render_view_impl.cc	(revision 148651)
+++ content/renderer/render_view_impl.cc	(working copy)
@@ -866,6 +866,9 @@
     IPC_MESSAGE_HANDLER(ViewMsg_Delete, OnDelete)
     IPC_MESSAGE_HANDLER(ViewMsg_SelectAll, OnSelectAll)
     IPC_MESSAGE_HANDLER(ViewMsg_SelectRange, OnSelectRange)
+#if defined(OS_MACOSX)
+    IPC_MESSAGE_HANDLER(ViewMsg_SpeakSelection, OnSpeakSelection)
+#endif
     IPC_MESSAGE_HANDLER(ViewMsg_CopyImageAt, OnCopyImageAt)
     IPC_MESSAGE_HANDLER(ViewMsg_ExecuteEditCommand, OnExecuteEditCommand)
     IPC_MESSAGE_HANDLER(ViewMsg_Find, OnFind)
@@ -2910,7 +2913,7 @@
       int width, height;
       if (base::StringToInt(tokens[0], &width) &&
           base::StringToInt(tokens[1], &height))
-        webview()->setFixedLayoutSize(WebSize(width,height));
+        webview()->setFixedLayoutSize(WebSize(width, height));
     }
   }
 }
@@ -4496,7 +4499,7 @@
 void RenderViewImpl::OnPostMessageEvent(
     const ViewMsg_PostMessage_Params& params) {
   // TODO(creis): Support sending to subframes.
-  WebFrame *frame = webview()->mainFrame();
+  WebFrame* frame = webview()->mainFrame();
 
   // Find the source frame if it exists.
   // TODO(creis): Support source subframes.
@@ -4829,6 +4832,17 @@
                                        before_unload_end_time));
 }
 
+#if defined(OS_MACOSX)
+void RenderViewImpl::OnSpeakSelection() {
+  if (!webview())
+    return;
+
+  WebFrame* frame = webview()->focusedFrame();
+  if (frame->hasSelection())
+    Send(new ViewHostMsg_SpeakText(routing_id(), frame->selectionAsText()));
+}
+#endif
+
 void RenderViewImpl::OnSwapOut(const ViewMsg_SwapOut_Params& params) {
   // Ensure that no other in-progress navigation continues.
   OnStop();
@@ -5252,7 +5266,6 @@
 #endif
       (*plugin_it)->SetContentAreaFocus(enable);
     }
-
   }
   // Notify all Pepper plugins.
   pepper_delegate_.OnSetFocus(enable);