Add ENABLE_PRINTING and disable it on Android.

chrome/browser/ui/tab_contents/tab_contents.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 "chrome/browser/ui/tab_contents/tab_contents.h"
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "chrome/browser/autocomplete_history_manager.h"
 #include "chrome/browser/autofill/autofill_external_delegate.h"
@@ skipping 102 matching lines @@
   restore_tab_helper_.reset(new RestoreTabHelper(contents));
   search_engine_tab_helper_.reset(new SearchEngineTabHelper(contents));
   snapshot_tab_helper_.reset(new SnapshotTabHelper(contents));
   ssl_helper_.reset(new TabContentsSSLHelper(this));
   synced_tab_delegate_.reset(new TabContentsWrapperSyncedTabDelegate(this));
   content_settings_.reset(new TabSpecificContentSettings(contents));
   translate_tab_helper_.reset(new TranslateTabHelper(contents));
   web_intent_picker_controller_.reset(new WebIntentPickerController(this));
   zoom_controller_.reset(new ZoomController(this));
 
+#if defined(ENABLE_PRINTING)
+  print_view_manager_.reset(new printing::PrintViewManager(this));

[Lei Zhang, 2012/06/08 23:24:52]

I believe you can combine this with the other #if defined(ENABLE_PRINTING) on
line 156 under one #if.

[Xianzhu, 2012/06/09 00:51:30]

Done.

+#endif
+
 #if !defined(OS_ANDROID)
-  print_view_manager_.reset(new printing::PrintViewManager(this));
   sad_tab_helper_.reset(new SadTabHelper(contents));
 #endif
 
   // Create the per-tab observers.
   alternate_error_page_tab_observer_.reset(
       new AlternateErrorPageTabObserver(contents, profile()));
   webnavigation_observer_.reset(
       new extensions::WebNavigationTabObserver(contents));
   external_protocol_observer_.reset(new ExternalProtocolObserver(contents));
   pdf_tab_observer_.reset(new PDFTabObserver(this));
   safe_browsing_tab_observer_.reset(
       new safe_browsing::SafeBrowsingTabObserver(this));
 
 #if defined(OS_WIN)
   // Metro mode Chrome on Windows does not support plugins. Avoid registering
   // the PluginObserver so we don't popup plugin-related infobars.
   if (!base::win::GetMetroModule())
     plugin_observer_.reset(new PluginObserver(this));
 #else
   plugin_observer_.reset(new PluginObserver(this));
 #endif
 
 #if !defined(OS_ANDROID)
   if (OmniboxSearchHint::IsEnabled(profile()))
     omnibox_search_hint_.reset(new OmniboxSearchHint(this));
+#endif
+
+#if defined(ENABLE_PRINTING)
   print_preview_.reset(new printing::PrintPreviewMessageHandler(contents));
 #endif
 
   // Start the in-browser thumbnailing if the feature is enabled.
   if (ShouldEnableInBrowserThumbnailing()) {
     thumbnail_generator_.reset(new ThumbnailGenerator);
     thumbnail_generator_->StartThumbnailing(web_contents_.get());
   }
 
   // If this is not an incognito window, setup to handle one-click login.
@@ skipping 95 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // WebContentsObserver overrides
 
 void TabContents::WebContentsDestroyed(WebContents* tab) {
   // Destruction of the WebContents should only be done by us from our
   // destructor. Otherwise it's very likely we (or one of the helpers we own)
   // will attempt to access the WebContents and we'll crash.
   DCHECK(in_destructor_);
 }