Browser Plugin: Allocate Instance IDs in BrowserPluginEmbedder instead of BrowserPluginManager

content/browser/web_contents/web_contents_impl.cc

 // Copyright (c) 2012 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/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
@@ skipping 723 matching lines @@
     IPC_MESSAGE_HANDLER(ViewHostMsg_CrashedPlugin, OnCrashedPlugin)
     IPC_MESSAGE_HANDLER(ViewHostMsg_AppCacheAccessed, OnAppCacheAccessed)
     IPC_MESSAGE_HANDLER(ViewHostMsg_OpenColorChooser, OnOpenColorChooser)
     IPC_MESSAGE_HANDLER(ViewHostMsg_EndColorChooser, OnEndColorChooser)
     IPC_MESSAGE_HANDLER(ViewHostMsg_SetSelectedColorInColorChooser,
                         OnSetSelectedColorInColorChooser)
     IPC_MESSAGE_HANDLER(ViewHostMsg_PepperPluginHung, OnPepperPluginHung)
     IPC_MESSAGE_HANDLER(ViewHostMsg_WebUISend, OnWebUISend)
     IPC_MESSAGE_HANDLER(ViewHostMsg_RequestPpapiBrokerPermission,
                         OnRequestPpapiBrokerPermission)
-    IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_CreateGuest,
-                        OnBrowserPluginCreateGuest)
+    IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_AllocateInstanceID,
+                        OnBrowserPluginAllocateInstanceID)
     IPC_MESSAGE_HANDLER(IconHostMsg_DidDownloadFavicon, OnDidDownloadFavicon)
     IPC_MESSAGE_HANDLER(IconHostMsg_UpdateFaviconURL, OnUpdateFaviconURL)
 #if defined(OS_ANDROID)
     IPC_MESSAGE_HANDLER(ViewHostMsg_FindMatchRects_Reply,
                         OnFindMatchRectsReply)
     IPC_MESSAGE_HANDLER(ViewHostMsg_OpenDateTimeDialog,
                         OnOpenDateTimeDialog)
 #endif
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP_EX()
@@ skipping 1604 matching lines @@
 }
 
 void WebContentsImpl::OnPpapiBrokerPermissionResult(int request_id,
                                                     bool result) {
   RenderViewHostImpl* rvh = GetRenderViewHostImpl();
   rvh->Send(new ViewMsg_PpapiBrokerPermissionResult(rvh->GetRoutingID(),
                                                     request_id,
                                                     result));
 }
 
-void WebContentsImpl::OnBrowserPluginCreateGuest(
-    int instance_id,
-    const BrowserPluginHostMsg_CreateGuest_Params& params) {
+void WebContentsImpl::OnBrowserPluginAllocateInstanceID(
+    const IPC::Message& message, int request_id) {
   // This creates a BrowserPluginEmbedder, which handles all the BrowserPlugin
-  // specific messages for this WebContents (through its
-  // BrowserPluginEmbedderHelper). This means that any message from browser
-  // plugin renderer prior to CreateGuest will be ignored.
+  // specific messages for this WebContents. This means that any message from
+  // a BrowserPlugin prior to AllocateInstanceID will be ignored.
   // For more info, see comment above classes BrowserPluginEmbedder and
   // BrowserPluginGuest.
-  // The first BrowserPluginHostMsg_CreateGuest message from this WebContents'
-  // embedder render process is handled here. Once BrowserPluginEmbedder is
-  // created, all subsequent BrowserPluginHostMsg_CreateGuest messages are
-  // intercepted by the BrowserPluginEmbedderHelper and handled by the
-  // BrowserPluginEmbedder. Thus, this code will not be executed if a
-  // BrowserPluginEmbedder exists for this WebContents.
+  // The first BrowserPluginHostMsg_AllocateInstanceID message from this
+  // WebContents' embedder render process is handled here. Once
+  // BrowserPluginEmbedder is created, all subsequent BrowserPluginHostMsg_*
+  // messages are handled in BrowserPluginEmbedder. Thus, this code will not be
+  // executed if a BrowserPluginEmbedder exists for this WebContents.
   CHECK(!browser_plugin_embedder_.get());
   browser_plugin_embedder_.reset(
       BrowserPluginEmbedder::Create(this, GetRenderViewHost()));
-  BrowserPluginHostMsg_CreateGuest create_guest_msg(
-      GetRenderViewHost()->GetRoutingID(), instance_id, params);
-  browser_plugin_embedder_->OnMessageReceived(create_guest_msg);
+  browser_plugin_embedder_->OnMessageReceived(message);
 }
 
 void WebContentsImpl::OnDidDownloadFavicon(
     int id,
     const GURL& image_url,
     int requested_size,
     const std::vector<SkBitmap>& bitmaps) {
   FaviconDownloadMap::iterator iter = favicon_download_map_.find(id);
   if (iter == favicon_download_map_.end()) {
     // Currently WebContents notifies us of ANY downloads so that it is
@@ skipping 1024 matching lines @@
 
 BrowserPluginGuest* WebContentsImpl::GetBrowserPluginGuest() {
   return browser_plugin_guest_.get();
 }
 
 BrowserPluginEmbedder* WebContentsImpl::GetBrowserPluginEmbedder() {
   return browser_plugin_embedder_.get();
 }
 
 }  // namespace content