Make SpeechRecognition per RenderFrame instead of per RenderView.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index c862b83fb3e181047b823a4fafd296c4949ed704..c3e54ef64338ea861c0eee7e7806fb3d1d75e026 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -92,6 +92,7 @@
 #include "content/renderer/renderer_webcolorchooser_impl.h"
 #include "content/renderer/screen_orientation/screen_orientation_dispatcher.h"
 #include "content/renderer/shared_worker_repository.h"
+#include "content/renderer/speech_recognition_dispatcher.h"
 #include "content/renderer/v8_value_converter_impl.h"
 #include "content/renderer/websharedworker_proxy.h"
 #include "gin/modules/module_registry.h"
@@ -651,6 +652,7 @@ RenderFrameImpl::RenderFrameImpl(RenderViewImpl* render_view, int routing_id)
       push_messaging_dispatcher_(NULL),
       screen_orientation_dispatcher_(NULL),
       manifest_manager_(NULL),
+      speech_recognition_dispatcher_(NULL),
       accessibility_mode_(AccessibilityModeOff),
       renderer_accessibility_(NULL),
       weak_factory_(this) {
@@ -3531,6 +3533,12 @@ void RenderFrameImpl::didChangeManifest(blink::WebLocalFrame* frame)
   FOR_EACH_OBSERVER(RenderFrameObserver, observers_, DidChangeManifest());
 }
 
+blink::WebSpeechRecognizer* RenderFrameImpl::speechRecognizer() {
+  if (!speech_recognition_dispatcher_)
+    speech_recognition_dispatcher_ = new SpeechRecognitionDispatcher(this);
+  return speech_recognition_dispatcher_;
+}
+
 void RenderFrameImpl::DidPlay(blink::WebMediaPlayer* player) {
   Send(new FrameHostMsg_MediaPlayingNotification(
       routing_id_, reinterpret_cast<int64>(player), player->hasVideo(),
@@ -3598,11 +3606,11 @@ void RenderFrameImpl::SendDidCommitProvisionalLoad(blink::WebFrame* frame) {
   params.page_id = render_view_->page_id_;
   // We need to track the RenderViewHost routing_id because of downstream
   // dependencies (crbug.com/392171 DownloadRequestHandle, SaveFileManager,
-  // ResourceDispatcherHostImpl, MediaStreamUIProxy,
-  // SpeechRecognitionDispatcherHost and possibly others). They look up the view
-  // based on the ID stored in the resource requests. Once those dependencies
-  // are unwound or moved to RenderFrameHost (crbug.com/304341) we can move the
-  // client to be based on the routing_id of the RenderFrameHost.
+  // ResourceDispatcherHostImpl, MediaStreamUIProxy, and possibly others). They
+  // look up the view based on the ID stored in the resource requests. Once
+  // those dependencies are unwound or moved to RenderFrameHost
+  // (crbug.com/304341) we can move the client to be based on the routing_id of
+  // the RenderFrameHost.
   params.render_view_routing_id = render_view_->routing_id();
   params.socket_address.set_host(response.remoteIPAddress().utf8());
   params.socket_address.set_port(response.remotePort());