Added functionality to use "SaveAs..." from PDF plugin.

content/browser/tab_contents/tab_contents.cc

 // Copyright (c) 2011 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/tab_contents/tab_contents.h"
 
 #include <cmath>
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/stats_counters.h"
 #include "base/string16.h"
 #include "base/string_util.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
+#include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/blocked_content_container.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_shutdown.h"
 #include "chrome/browser/character_encoding.h"
 #include "chrome/browser/content_settings/content_settings_details.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/debugger/devtools_manager.h"
 #include "chrome/browser/defaults.h"
 #include "chrome/browser/dom_operation_notification_details.h"
 #include "chrome/browser/download/download_item_model.h"
@@ skipping 18 matching lines @@
 #include "chrome/browser/renderer_host/web_cache_manager.h"
 #include "chrome/browser/renderer_preferences_util.h"
 #include "chrome/browser/safe_browsing/client_side_detection_host.h"
 #include "chrome/browser/sessions/session_types.h"
 #include "chrome/browser/tab_contents/infobar_delegate.h"
 #include "chrome/browser/tab_contents/tab_contents_ssl_helper.h"
 #include "chrome/browser/tab_contents/thumbnail_generator.h"
 #include "chrome/browser/translate/page_translated_details.h"
 #include "chrome/browser/ui/app_modal_dialogs/message_box_handler.h"
 #include "chrome/browser/ui/browser_dialogs.h"
+#include "chrome/browser/ui/download/download_tab_helper.h"
+#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"

[jam, 2011/04/15 17:58:44]

TabContents doesn't know about TabContentsWrapper, so the IPC message shouldn't
be handled here.  We're trying to to remove all the "chrome/" includes from the
content module.

You should make DownloadTabHelper be a TabContentsObserver, that way it can have
an OnMessageReceived function that allows it to filer IPCs, and handle that new
message there.

 #include "chrome/common/bindings_policy.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/content_restriction.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_messages.h"
 #include "chrome/common/extensions/url_pattern.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/url_constants.h"
@@ skipping 335 matching lines @@
                         OnDidDisplayInsecureContent)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidRunInsecureContent,
                         OnDidRunInsecureContent)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DocumentLoadedInFrame,
                         OnDocumentLoadedInFrame)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidFinishLoad, OnDidFinishLoad)
     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateContentRestrictions,
                         OnUpdateContentRestrictions)
     IPC_MESSAGE_HANDLER(ViewHostMsg_PDFHasUnsupportedFeature,
                         OnPDFHasUnsupportedFeature)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_SaveAs, OnSaveAs)
     IPC_MESSAGE_HANDLER(ViewHostMsg_GoToEntryAtOffset, OnGoToEntryAtOffset)
     IPC_MESSAGE_HANDLER(ViewHostMsg_PageContents, OnPageContents)
     IPC_MESSAGE_HANDLER(ViewHostMsg_PageTranslated, OnPageTranslated)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP_EX()
 
   if (!message_is_ok) {
     UserMetrics::RecordAction(UserMetricsAction("BadMessageTerminate_RVD"));
     GetRenderProcessHost()->ReceivedBadMessage();
   }
@@ skipping 948 matching lines @@
 }
 
 void TabContents::OnUpdateContentRestrictions(int restrictions) {
   SetContentRestrictions(restrictions);
 }
 
 void TabContents::OnPDFHasUnsupportedFeature() {
   PDFHasUnsupportedFeature(this);
 }
 
+void TabContents::OnSaveAs() {
+  TabContentsWrapper* wrapper =
+      TabContentsWrapper::GetCurrentWrapperForContents(this);
+  wrapper->download_tab_helper()->OnSavePage();
+}
+
 // Notifies the RenderWidgetHost instance about the fact that the page is
 // loading, or done loading and calls the base implementation.
 void TabContents::SetIsLoading(bool is_loading,
                                LoadNotificationDetails* details) {
   if (is_loading == is_loading_)
     return;
 
   if (!is_loading) {
     load_state_ = net::LOAD_STATE_IDLE;
     load_state_host_.clear();
@@ skipping 1185 matching lines @@
 
 void TabContents::CreateViewAndSetSizeForRVH(RenderViewHost* rvh) {
   RenderWidgetHostView* rwh_view = view()->CreateViewForWidget(rvh);
   rwh_view->SetSize(view()->GetContainerSize());
 }
 
 void TabContents::OnOnlineStateChanged(bool online) {
   render_view_host()->Send(new ViewMsg_NetworkStateChanged(
       render_view_host()->routing_id(), online));
 }