Make <webview> use out-of-process iframe architecture.

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 "base/auto_reset.h"
@@ skipping 995 matching lines @@
     IPC_MESSAGE_HANDLER(InputMsg_Paste, OnPaste)
     IPC_MESSAGE_HANDLER(InputMsg_PasteAndMatchStyle, OnPasteAndMatchStyle)
     IPC_MESSAGE_HANDLER(InputMsg_Delete, OnDelete)
     IPC_MESSAGE_HANDLER(InputMsg_SelectAll, OnSelectAll)
     IPC_MESSAGE_HANDLER(InputMsg_SelectRange, OnSelectRange)
     IPC_MESSAGE_HANDLER(InputMsg_Unselect, OnUnselect)
     IPC_MESSAGE_HANDLER(InputMsg_MoveRangeSelectionExtent,
                         OnMoveRangeSelectionExtent)
     IPC_MESSAGE_HANDLER(InputMsg_Replace, OnReplace)
     IPC_MESSAGE_HANDLER(InputMsg_ReplaceMisspelling, OnReplaceMisspelling)
+    IPC_MESSAGE_HANDLER(FrameMsg_ReplaceLocalFrameWithProxy,
+                        OnReplaceLocalFrameWithProxy)
     IPC_MESSAGE_HANDLER(InputMsg_ExtendSelectionAndDelete,
                         OnExtendSelectionAndDelete)
     IPC_MESSAGE_HANDLER(InputMsg_SetCompositionFromExistingText,
                         OnSetCompositionFromExistingText)
     IPC_MESSAGE_HANDLER(InputMsg_ExecuteNoValueEditCommand,
                         OnExecuteNoValueEditCommand)
     IPC_MESSAGE_HANDLER(FrameMsg_CSSInsertRequest, OnCSSInsertRequest)
     IPC_MESSAGE_HANDLER(FrameMsg_JavaScriptExecuteRequest,
                         OnJavaScriptExecuteRequest)
     IPC_MESSAGE_HANDLER(FrameMsg_JavaScriptExecuteRequestForTests,
@@ skipping 3047 matching lines @@
   request.setCheckForBrowserSideNavigation(false);
 
   // Record this before starting the load. A lower bound of this time is needed
   // to sanitize the navigationStart override set below.
   base::TimeTicks renderer_navigation_start = base::TimeTicks::Now();
   frame_->loadRequest(request);
   UpdateFrameNavigationTiming(frame_, request_params.browser_navigation_start,
                               renderer_navigation_start);
 }
 
+void RenderFrameImpl::OnReplaceLocalFrameWithProxy(int proxy_routing_id) {
+  RenderFrameProxy* proxy_to_replace_frame = RenderFrameProxy::FromRoutingID(
+      proxy_routing_id);
+  DCHECK(proxy_to_replace_frame);
+
+  blink::WebRemoteFrame* web_frame =
+      blink::WebRemoteFrame::create(proxy_to_replace_frame);
+  proxy_to_replace_frame->SetWebRemoteFrame(web_frame);
+  proxy_to_replace_frame->web_frame()->initializeFromFrame(frame_);
+  frame_->swap(proxy_to_replace_frame->web_frame());
+  printf("**** done swap() ****\n");
+  render_view_->RegisterRenderFrameProxy(proxy_to_replace_frame);

[Charlie Reis, 2015/04/08 23:42:12]

Please check with Lucas about this, since he and Daniel have a better sense for
the swap semantics.

[lazyboy, 2015/04/14 01:38:04]

Acknowledged.
Lucas and I discussed about this initially, will check back again.

+}
+
 WebNavigationPolicy RenderFrameImpl::DecidePolicyForNavigation(
     RenderFrame* render_frame,
     const NavigationPolicyInfo& info) {
 #ifdef OS_ANDROID
   // The handlenavigation API is deprecated and will be removed once
   // crbug.com/325351 is resolved.
   if (info.urlRequest.url() != GURL(kSwappedOutURL) &&
       GetContentClient()->renderer()->HandleNavigation(
           render_frame,
           static_cast<DocumentState*>(info.extraData),
@@ skipping 603 matching lines @@
 
 #if defined(ENABLE_BROWSER_CDMS)
 RendererCdmManager* RenderFrameImpl::GetCdmManager() {
   if (!cdm_manager_)
     cdm_manager_ = new RendererCdmManager(this);
   return cdm_manager_;
 }
 #endif  // defined(ENABLE_BROWSER_CDMS)
 
 }  // namespace content