Implement skia sandbox callback

chrome/renderer/print_web_view_helper.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 "chrome/renderer/print_web_view_helper.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 27 matching lines @@
 #include "webkit/glue/webpreferences.h"
 
 #if defined(OS_POSIX)
 #include "base/process_util.h"
 #endif
 
 #if defined(USE_SKIA)
 #include "skia/ext/vector_canvas.h"
 #include "skia/ext/vector_platform_device_skia.h"
 #include "third_party/skia/include/core/SkTypeface.h"
+#if defined (OS_WIN)
+#include "content/common/child_process_messages.h"
+#include "third_party/skia/include/ports/SkSandbox_win.h"
+#endif
 #elif defined(OS_MACOSX)
 #include <CoreGraphics/CGContext.h>
 
 #include "base/mac/scoped_cftyperef.h"
 #include "base/sys_string_conversions.h"
 #include "ui/gfx/scoped_cg_context_save_gstate_mac.h"
 #endif
 
 #if defined(OS_MACOSX)
 using base::mac::ScopedCFTypeRef;
@@ skipping 190 matching lines @@
                                           vertical_position, offset_to_baseline,
                                           text_width_in_points);
   CGContextSetTextPosition(canvas, SkScalarToDouble(point.x()),
                            SkScalarToDouble(point.y()));
   CTLineDraw(line, canvas);
 #endif
 }
 
 }  // namespace
 
+#if defined (OS_WIN) && defined (USE_SKIA)
+class PrintWebViewHelperSkSandbox : public skia::SkSandbox {

[vandebo (ex-Chrome), 2011/11/15 17:03:30]

This is the wrong place for this.  It should go in skia/ext/

+ public:
+  explicit PrintWebViewHelperSkSandbox(PrintWebViewHelper* container) {
+    container_ = container;
+  }
+  virtual ~PrintWebViewHelperSkSandbox() {}
+
+  virtual bool EnsureFontLoad(LOGFONT logfont) {
+    return container_->EnsureFontLoad(logfont);
+  }
+
+ private:
+  PrintWebViewHelper* container_;
+};
+#endif  // defined (OS_WIN) && defined (USE_SKIA)
+
 // static - Not anonymous so that platform implementations can use it.
 void PrintWebViewHelper::PrintHeaderAndFooter(
     WebKit::WebCanvas* canvas,
     int page_number,
     int total_pages,
     float webkit_scale_factor,
     const PageSizeMargins& page_layout,
     const DictionaryValue& header_footer_info) {
 #if defined(USE_SKIA)
   skia::VectorPlatformDeviceSkia* device =
@@ skipping 167 matching lines @@
 }
 
 PrintWebViewHelper::PrintWebViewHelper(content::RenderView* render_view)
     : content::RenderViewObserver(render_view),
       content::RenderViewObserverTracker<PrintWebViewHelper>(render_view),
       print_web_view_(NULL),
       is_preview_enabled_(switches::IsPrintPreviewEnabled()),
       is_print_ready_metafile_sent_(false),
       user_cancelled_scripted_print_count_(0),
       notify_browser_of_print_failure_(true) {
+#if defined(OS_WIN) && defined(USE_SKIA)
+  if (!skia::gSandbox) {
+    skia::gSandbox = new PrintWebViewHelperSkSandbox(this);
+  }
+#endif
 }
 
-PrintWebViewHelper::~PrintWebViewHelper() {}
+PrintWebViewHelper::~PrintWebViewHelper() {
+#if defined(OS_WIN) && defined(USE_SKIA)
+  delete skia::gSandbox;
+  skia::gSandbox = NULL;
+#endif
+}
 
 // Prints |frame| which called window.print().
 void PrintWebViewHelper::PrintPage(WebKit::WebFrame* frame) {
   DCHECK(frame);
 
   // Allow Prerendering to cancel this print request if necessary.
   if (prerender::PrerenderHelper::IsPrerendering(render_view())) {
     Send(new ChromeViewHostMsg_CancelPrerenderForPrinting(routing_id()));
     return;
   }
@@ skipping 1104 matching lines @@
   DCHECK(IsRendering());
   return prep_frame_view_->GetPrintCanvasSize();
 }
 
 void PrintWebViewHelper::PrintPreviewContext::ClearContext() {
   prep_frame_view_.reset();
   metafile_.reset();
   pages_to_render_.clear();
   error_ = PREVIEW_ERROR_NONE;
 }
+
+#if defined(OS_WIN) && defined(USE_SKIA)
+bool PrintWebViewHelper::EnsureFontLoad(LOGFONT logfont) {
+  return Send(new ChildProcessHostMsg_PreCacheFont(logfont));
+}
+#endif