Cleanup: Move TabContent::PrintNow() out of src/content.

BUG=76795
Review URL: http://codereview.chromium.org/6872003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@81799 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/printing/print_view_manager.h b/chrome/browser/printing/print_view_manager.h
index be39ec7..fa766c9 100644
--- a/chrome/browser/printing/print_view_manager.h
+++ b/chrome/browser/printing/print_view_manager.h
@@ -36,6 +36,11 @@
   // in |tab_contents|.
   void OverrideTitle(TabContents* tab_contents);
 
+  // Prints the current document immediately. Since the rendering is
+  // asynchronous, the actual printing will not be completed on the return of
+  // this function. Returns false if printing is impossible at the moment.
+  bool PrintNow();
+
   // PrintedPagesSource implementation.
   virtual string16 RenderSourceName();
   virtual GURL RenderSourceUrl();