Revert 157773 - This is followup from Charlie's comments on Fady's cl: http://chromiumcodereview.ap…

content/browser/browser_plugin/browser_plugin_embedder.cc

Index: content/browser/browser_plugin/browser_plugin_embedder.cc
===================================================================
--- content/browser/browser_plugin/browser_plugin_embedder.cc	(revision 157800)
+++ content/browser/browser_plugin/browser_plugin_embedder.cc	(working copy)
@@ -1,231 +0,0 @@
-// 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/browser_plugin/browser_plugin_embedder.h"
-
-#include <set>
-
-#include "base/logging.h"
-#include "base/stl_util.h"
-#include "base/time.h"
-#include "content/browser/browser_plugin/browser_plugin_embedder_helper.h"
-#include "content/browser/browser_plugin/browser_plugin_guest.h"
-#include "content/browser/browser_plugin/browser_plugin_host_factory.h"
-#include "content/browser/renderer_host/render_view_host_impl.h"
-#include "content/browser/web_contents/web_contents_impl.h"
-#include "content/public/browser/notification_details.h"
-#include "content/public/browser/notification_service.h"
-#include "content/public/browser/notification_source.h"
-#include "content/public/browser/notification_types.h"
-#include "content/public/browser/web_contents_view.h"
-#include "content/public/common/url_constants.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
-#include "ui/gfx/size.h"
-#include "ui/surface/transport_dib.h"
-
-namespace content {
-
-// static
-BrowserPluginHostFactory* BrowserPluginEmbedder::factory_ = NULL;
-
-BrowserPluginEmbedder::BrowserPluginEmbedder(
-    WebContentsImpl* web_contents,
-    RenderViewHost* render_view_host)
-    : WebContentsObserver(web_contents),
-      render_view_host_(render_view_host) {
-  // Listen to visibility changes so that an embedder hides its guests
-  // as well.
-  registrar_.Add(this,
-                 NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED,
-                 Source<WebContents>(web_contents));
-
-  // |render_view_host| manages the ownership of this BrowserPluginGuestHelper.
-  new BrowserPluginEmbedderHelper(this, render_view_host);
-}
-
-BrowserPluginEmbedder::~BrowserPluginEmbedder() {
-  // Destroy guests that are managed by the current embedder.
-  DestroyGuests();
-}
-
-// static
-BrowserPluginEmbedder* BrowserPluginEmbedder::Create(
-    WebContentsImpl* web_contents,
-    content::RenderViewHost* render_view_host) {
-  if (factory_) {
-    return factory_->CreateBrowserPluginEmbedder(web_contents,
-                                                 render_view_host);
-  }
-  return new BrowserPluginEmbedder(web_contents, render_view_host);
-}
-
-BrowserPluginGuest* BrowserPluginEmbedder::GetGuestByInstanceID(
-    int instance_id) const {
-  ContainerInstanceMap::const_iterator it =
-      guest_web_contents_by_instance_id_.find(instance_id);
-  if (it != guest_web_contents_by_instance_id_.end())
-    return static_cast<WebContentsImpl*>(it->second)->GetBrowserPluginGuest();
-  return NULL;
-}
-
-void BrowserPluginEmbedder::AddGuest(int instance_id,
-                                     WebContents* guest_web_contents,
-                                     int64 frame_id) {
-  DCHECK(guest_web_contents_by_instance_id_.find(instance_id) ==
-         guest_web_contents_by_instance_id_.end());
-  guest_web_contents_by_instance_id_[instance_id] = guest_web_contents;
-}
-
-void BrowserPluginEmbedder::NavigateGuest(RenderViewHost* render_view_host,
-                                          int instance_id,
-                                          int64 frame_id,
-                                          const std::string& src,
-                                          const gfx::Size& size) {
-  BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id);
-  WebContentsImpl* guest_web_contents = NULL;
-  GURL url(src);
-  if (!guest) {
-    const std::string& host =
-        render_view_host->GetSiteInstance()->GetSite().host();
-    guest_web_contents = WebContentsImpl::CreateGuest(
-        web_contents()->GetBrowserContext(),
-        host,
-        instance_id);
-
-    guest = guest_web_contents->GetBrowserPluginGuest();
-    guest->set_embedder_render_process_host(
-        render_view_host->GetProcess());
-
-    guest_web_contents->GetMutableRendererPrefs()->
-        throttle_input_events = false;
-    AddGuest(instance_id, guest_web_contents, frame_id);
-    guest_web_contents->SetDelegate(guest);
-  } else {
-    guest_web_contents = static_cast<WebContentsImpl*>(guest->web_contents());
-  }
-
-  // We ignore loading empty urls in web_contents.
-  // If a guest sets empty src attribute after it has navigated to some
-  // non-empty page, the action is considered no-op.
-  // TODO(lazyboy): The js shim for browser-plugin might need to reflect empty
-  // src ignoring in the shadow DOM element: http://crbug.com/149001.
-  if (!src.empty()) {
-    guest_web_contents->GetController().LoadURL(url,
-                                                Referrer(),
-                                                PAGE_TRANSITION_AUTO_SUBFRAME,
-                                                std::string());
-  }
-
-  if (!size.IsEmpty())
-    guest_web_contents->GetView()->SizeContents(size);
-}
-
-void BrowserPluginEmbedder::UpdateRectACK(int instance_id,
-                                          int message_id,
-                                          const gfx::Size& size) {
-  BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id);
-  if (guest)
-    guest->UpdateRectACK(message_id, size);
-}
-
-void BrowserPluginEmbedder::ResizeGuest(int instance_id,
-                                        TransportDIB* damage_buffer,
-#if defined(OS_WIN)
-                                        int damage_buffer_size,
-#endif
-                                        int width,
-                                        int height,
-                                        bool resize_pending,
-                                        float scale_factor) {
-  BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id);
-  if (!guest)
-    return;
-  WebContentsImpl* guest_web_contents =
-      static_cast<WebContentsImpl*>(guest->web_contents());
-  guest->SetDamageBuffer(damage_buffer,
-#if defined(OS_WIN)
-                         damage_buffer_size,
-#endif
-                         gfx::Size(width, height),
-                         scale_factor);
-  if (!resize_pending)
-    guest_web_contents->GetView()->SizeContents(gfx::Size(width, height));
-}
-
-void BrowserPluginEmbedder::SetFocus(int instance_id,
-                                     bool focused) {
-  BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id);
-  if (guest)
-    guest->SetFocus(focused);
-}
-
-void BrowserPluginEmbedder::DestroyGuests() {
-  STLDeleteContainerPairSecondPointers(
-      guest_web_contents_by_instance_id_.begin(),
-      guest_web_contents_by_instance_id_.end());
-  guest_web_contents_by_instance_id_.clear();
-}
-
-void BrowserPluginEmbedder::HandleInputEvent(int instance_id,
-                                             RenderViewHost* render_view_host,
-                                             const gfx::Rect& guest_rect,
-                                             const WebKit::WebInputEvent& event,
-                                             IPC::Message* reply_message) {
-  BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id);
-  if (guest)
-    guest->HandleInputEvent(render_view_host, guest_rect, event, reply_message);
-}
-
-void BrowserPluginEmbedder::DestroyGuestByInstanceID(int instance_id) {
-  BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id);
-  if (guest) {
-    WebContents* guest_web_contents = guest->web_contents();
-
-    // Destroy the guest's web_contents.
-    delete guest_web_contents;
-    guest_web_contents_by_instance_id_.erase(instance_id);
-  }
-}
-
-void BrowserPluginEmbedder::RenderViewDeleted(
-    RenderViewHost* render_view_host) {
-  DestroyGuests();
-}
-
-void BrowserPluginEmbedder::RenderViewGone(base::TerminationStatus status) {
-  DestroyGuests();
-}
-
-void BrowserPluginEmbedder::WebContentsVisibilityChanged(bool visible) {
-  // If the embedder is hidden we need to hide the guests as well.
-  for (ContainerInstanceMap::const_iterator it =
-           guest_web_contents_by_instance_id_.begin();
-       it != guest_web_contents_by_instance_id_.end(); ++it) {
-    WebContents* web_contents = it->second;
-    if (visible)
-      web_contents->WasShown();
-    else
-      web_contents->WasHidden();
-  }
-}
-
-void BrowserPluginEmbedder::PluginDestroyed(int instance_id) {
-  DestroyGuestByInstanceID(instance_id);
-}
-
-void BrowserPluginEmbedder::Observe(int type,
-                                    const NotificationSource& source,
-                                    const NotificationDetails& details) {
-  switch (type) {
-    case NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED: {
-      bool visible = *Details<bool>(details).ptr();
-      WebContentsVisibilityChanged(visible);
-      break;
-    }
-    default:
-      NOTREACHED() << "Unexpected notification type: " << type;
-  }
-}
-
-}  // namespace content