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

chrome/renderer/print_web_view_helper.h

Index: chrome/renderer/print_web_view_helper.h
diff --git a/chrome/renderer/print_web_view_helper.h b/chrome/renderer/print_web_view_helper.h
index 24de40ef2530380b8025b96decc83c102e603bad..85b18521173215d1e638df303385456116f511ea 100644
--- a/chrome/renderer/print_web_view_helper.h
+++ b/chrome/renderer/print_web_view_helper.h
@@ -21,6 +21,13 @@
 #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;
@@ -90,6 +97,12 @@ class PrintWebViewHelper
   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();
@@ -426,6 +439,11 @@ class PrintWebViewHelper
 
   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);
 };