AndroidOverlay implementation using Dialog.

content/renderer/render_frame_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 1603 matching lines @@
     IPC_MESSAGE_HANDLER(FrameMsg_ClearFocusedElement, OnClearFocusedElement)
     IPC_MESSAGE_HANDLER(FrameMsg_BlinkFeatureUsageReport,
                         OnBlinkFeatureUsageReport)
     IPC_MESSAGE_HANDLER(FrameMsg_MixedContentFound, OnMixedContentFound)
 #if defined(OS_ANDROID)
     IPC_MESSAGE_HANDLER(FrameMsg_ActivateNearestFindResult,
                         OnActivateNearestFindResult)
     IPC_MESSAGE_HANDLER(FrameMsg_GetNearestFindResult,
                         OnGetNearestFindResult)
     IPC_MESSAGE_HANDLER(FrameMsg_FindMatchRects, OnFindMatchRects)
+    IPC_MESSAGE_HANDLER(FrameMsg_SetOverlayRoutingToken,
+                        OnSetOverlayRoutingToken)
 #endif
 
 #if BUILDFLAG(USE_EXTERNAL_POPUP_MENU)
 #if defined(OS_MACOSX)
     IPC_MESSAGE_HANDLER(FrameMsg_SelectPopupMenuItem, OnSelectPopupMenuItem)
 #else
     IPC_MESSAGE_HANDLER(FrameMsg_SelectPopupMenuItems, OnSelectPopupMenuItems)
 #endif
 #endif
 
@@ skipping 4232 matching lines @@
     frame_->FindMatchRects(web_match_rects);
     match_rects.reserve(web_match_rects.size());
     for (size_t i = 0; i < web_match_rects.size(); ++i)
       match_rects.push_back(gfx::RectF(web_match_rects[i]));
   }
 
   gfx::RectF active_rect = frame_->ActiveFindMatchRect();
   Send(new FrameHostMsg_FindMatchRects_Reply(routing_id_, rects_version,
                                              match_rects, active_rect));
 }
+
+void RenderFrameImpl::OnSetOverlayRoutingToken(
+    const base::UnguessableToken& token) {
+  overlay_routing_token_ = token;
+  for (const auto& cb : pending_routing_token_callbacks_)
+    cb.Run(overlay_routing_token_.value());
+  pending_routing_token_callbacks_.clear();
+}
+
+void RenderFrameImpl::GetOverlayRoutingToken(

[aelias_OOO_until_Jul13, 2017/04/26 23:41:22]

I typically expect methods named "Get" to be more passive than this, please
rename to RequestOverlayRoutingToken.

[liberato (no reviews please), 2017/05/02 17:05:12]

Done.

+    const media::RoutingTokenCallback& callback) {
+  if (overlay_routing_token_.has_value()) {
+    callback.Run(overlay_routing_token_.value());
+    return;
+  }
+
+  // Send a request to the host for the token.  We'll notify |callback| when it
+  // arrives later.
+  Send(new FrameHostMsg_RequestOverlayRoutingToken(routing_id_));
+
+  pending_routing_token_callbacks_.push_back(callback);
+}
 #endif
 
 #if BUILDFLAG(USE_EXTERNAL_POPUP_MENU)
 #if defined(OS_MACOSX)
 void RenderFrameImpl::OnSelectPopupMenuItem(int selected_index) {
   if (external_popup_menu_ == NULL)
     return;
   external_popup_menu_->DidSelectItem(selected_index);
   external_popup_menu_.reset();
 }
@@ skipping 1110 matching lines @@
       policy(info.default_policy),
       replaces_current_history_item(info.replaces_current_history_item),
       history_navigation_in_new_child_frame(
           info.is_history_navigation_in_new_child_frame),
       client_redirect(info.is_client_redirect),
       cache_disabled(info.is_cache_disabled),
       form(info.form),
       source_location(info.source_location) {}
 
 }  // namespace content