Fix RTL and complex script title in print preview header/footer.

chrome/renderer/print_web_view_helper.h

 // 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.
 
 #ifndef CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_
 #define CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_
 #pragma once
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/shared_memory.h"
 #include "base/time.h"
 #include "content/public/renderer/render_view_observer.h"
 #include "content/public/renderer/render_view_observer_tracker.h"
 #include "printing/metafile.h"
 #include "printing/metafile_impl.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebCanvas.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrameClient.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebNode.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebViewClient.h"
 #include "ui/gfx/size.h"
 
+#if defined (USE_SKIA)
+#include "third_party/skia/include/core/SkTypeface.h"
+#if defined (OS_WIN)
+#include <usp10.h>
+#endif
+#endif
+
 struct PrintMsg_Print_Params;
 struct PrintMsg_PrintPage_Params;
 struct PrintMsg_PrintPages_Params;
 
 namespace base {
 class DictionaryValue;
 }
 namespace printing {
 struct PageSizeMargins;
 }
@@ skipping 49 matching lines @@
 // of the document and creating a new WebView with the contents.
 class PrintWebViewHelper
     : public content::RenderViewObserver,
       public content::RenderViewObserverTracker<PrintWebViewHelper>,
       public WebKit::WebViewClient,
       public WebKit::WebFrameClient {
  public:
   explicit PrintWebViewHelper(content::RenderView* render_view);
   virtual ~PrintWebViewHelper();
 
+#if defined(USE_SKIA)
+  static bool ConvertTextToGlyphs(SkTypeface* typeface,
+                                  const string16& text,
+                                  std::vector<uint16_t>* glyphs);

[jungshik at Google, 2012/01/06 22:38:45]

As I wrote elsewhere, just getting an array of glyph is not sufficient.
Positions (xoffset and yoffset) and fonts (when multiple fonts are necessary for
drawing the input string) are necessary as well. 

+#endif
+
  protected:
   // WebKit::WebViewClient override:
   virtual void didStopLoading();
 
  private:
   friend class PrintWebViewHelperTestBase;
   FRIEND_TEST_ALL_PREFIXES(PrintWebViewHelperTest,
                            BlockScriptInitiatedPrinting);
   FRIEND_TEST_ALL_PREFIXES(PrintWebViewHelperTest, OnPrintPages);
 
@@ skipping 316 matching lines @@
     base::TimeDelta document_render_time_;
     base::TimeTicks begin_time_;
 
     enum PrintPreviewErrorBuckets error_;
 
     State state_;
   };
 
   PrintPreviewContext print_preview_context_;
 
+#if defined(USE_SKIA) && defined(OS_WIN)
+  static SCRIPT_CACHE g_script_cache_;
+  static SCRIPT_ANALYSIS g_script_analysis_;
+#endif
+
   DISALLOW_COPY_AND_ASSIGN(PrintWebViewHelper);
 };
 
 #endif  // CHROME_RENDERER_PRINT_WEB_VIEW_HELPER_H_