Revert "Convert FrameMsg_SetWebUIProperty and FrameHostMsg_WebUISend to mojo interfaces"

This reverts commit ce44dc33d57a7a53e59942eb67f9b91af96e28fc.

Reason for revert: This change have introduced 4% flakiness for OOBE tests.

Investigation showed that when system is under heavy load chrome.send signal from JS to C++ side is sometimes lost. See issue 1082670 for full details.

Bug: 1082670
Bug: 1041074

Original change's description:
> Convert FrameMsg_SetWebUIProperty and FrameHostMsg_WebUISend to mojo interfaces
> 
> This CL converts FrameMsg_SetWebUIProperty to WebUI mojo interface
> and FrameHostMsg_WebUISend to WebUIHost mojo interface, and
> introduces those mojo interfaces newly.
> 
> Bug: 1041074
> Change-Id: Ifd47bca7b919647bd7163758826537f7d201dc85
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2097795
> Reviewed-by: Roman Sorokin [CET] <[email protected]>
> Reviewed-by: Alexander Alekseev <[email protected]>
> Reviewed-by: Dave Tapuska <[email protected]>
> Reviewed-by: Kinuko Yasuda <[email protected]>
> Reviewed-by: Kentaro Hara <[email protected]>
> Commit-Queue: Miyoung Shin <[email protected]>
> Cr-Commit-Position: refs/heads/master@{#768092}

[email protected],[email protected],[email protected],[email protected],[email protected],[email protected]

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 1041074
Change-Id: Ieafc857ade2e310f2282919fe35974d52483ea49
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2207211
Reviewed-by: Denis Kuznetsov [CET] <[email protected]>
Commit-Queue: Denis Kuznetsov [CET] <[email protected]>
Cr-Commit-Position: refs/heads/master@{#769702}
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index 47a502e..2ef4d37 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -909,6 +909,12 @@
 
 bool WebContentsImpl::OnMessageReceived(RenderFrameHostImpl* render_frame_host,
                                         const IPC::Message& message) {
+  {
+    WebUIImpl* web_ui = render_frame_host->web_ui();
+    if (web_ui && web_ui->OnMessageReceived(message, render_frame_host))
+      return true;
+  }
+
   for (auto& observer : observers_) {
     if (observer.OnMessageReceived(message, render_frame_host))
       return true;
@@ -6517,9 +6523,8 @@
 }
 
 std::unique_ptr<WebUIImpl> WebContentsImpl::CreateWebUIForRenderFrameHost(
-    const GURL& url,
-    RenderFrameHost* frame_host) {
-  return CreateWebUI(url, frame_host);
+    const GURL& url) {
+  return CreateWebUI(url);
 }
 
 void WebContentsImpl::CreateRenderWidgetHostViewForRenderManager(
@@ -6772,11 +6777,8 @@
     delegate_->UpdatePreferredSize(this, new_size);
 }
 
-std::unique_ptr<WebUIImpl> WebContentsImpl::CreateWebUI(
-    const GURL& url,
-    RenderFrameHost* frame_host) {
-  std::unique_ptr<WebUIImpl> web_ui =
-      std::make_unique<WebUIImpl>(this, frame_host);
+std::unique_ptr<WebUIImpl> WebContentsImpl::CreateWebUI(const GURL& url) {
+  std::unique_ptr<WebUIImpl> web_ui = std::make_unique<WebUIImpl>(this);
   std::unique_ptr<WebUIController> controller(
       WebUIControllerFactoryRegistry::GetInstance()
           ->CreateWebUIControllerForURL(web_ui.get(), url));