Draw recorded content directly into the containing PaintCanvas, when possible.

third_party/WebKit/Source/web/WebLocalFrameImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 312 matching lines @@
     float pageHeight;
     computePageRects(FloatRect(FloatPoint(0, 0), pageSizeInPixels), 0, 0, 1,
                      pageHeight);
 
     const float pageWidth = pageSizeInPixels.width();
     size_t numPages = pageRects().size();
     int totalHeight = numPages * (pageSizeInPixels.height() + 1) - 1;
     IntRect allPagesRect(0, 0, pageWidth, totalHeight);
 
     PaintRecordBuilder builder(allPagesRect, &canvas->getMetaData());
-    {
-      GraphicsContext& context = builder.context();
-      context.setPrinting(true);
-      context.beginRecording(allPagesRect);
+    GraphicsContext& context = builder.context();
+    context.setPrinting(true);
+    context.beginRecording(allPagesRect);
 
-      // Fill the whole background by white.
-      context.fillRect(FloatRect(0, 0, pageWidth, totalHeight), Color::white);
+    // Fill the whole background by white.
+    context.fillRect(FloatRect(0, 0, pageWidth, totalHeight), Color::white);
 
-      int currentHeight = 0;
-      for (size_t pageIndex = 0; pageIndex < numPages; pageIndex++) {
-        // Draw a line for a page boundary if this isn't the first page.
-        if (pageIndex > 0) {
-          context.save();
-          context.setStrokeColor(Color(0, 0, 255));
-          context.setFillColor(Color(0, 0, 255));
-          context.drawLine(IntPoint(0, currentHeight),
-                           IntPoint(pageWidth, currentHeight));
-          context.restore();
-        }
+    int currentHeight = 0;
+    for (size_t pageIndex = 0; pageIndex < numPages; pageIndex++) {
+      // Draw a line for a page boundary if this isn't the first page.
+      if (pageIndex > 0) {
+        context.save();
+        context.setStrokeColor(Color(0, 0, 255));
+        context.setFillColor(Color(0, 0, 255));
+        context.drawLine(IntPoint(0, currentHeight),
+                         IntPoint(pageWidth, currentHeight));
+        context.restore();
+      }
 
-        AffineTransform transform;
-        transform.translate(0, currentHeight);
+      AffineTransform transform;
+      transform.translate(0, currentHeight);
 #if OS(WIN) || OS(MACOSX)
-        // Account for the disabling of scaling in spoolPage. In the context
-        // of spoolAllPagesWithBoundaries the scale HAS NOT been pre-applied.
-        float scale = getPageShrink(pageIndex);
-        transform.scale(scale, scale);
+      // Account for the disabling of scaling in spoolPage. In the context
+      // of spoolAllPagesWithBoundaries the scale HAS NOT been pre-applied.
+      float scale = getPageShrink(pageIndex);
+      transform.scale(scale, scale);
 #endif
-        context.save();
-        context.concatCTM(transform);
+      context.save();
+      context.concatCTM(transform);
 
-        spoolPage(context, pageIndex, allPagesRect);
+      spoolPage(context, pageIndex, allPagesRect);
 
-        context.restore();
+      context.restore();
 
-        currentHeight += pageSizeInPixels.height() + 1;
-      }
-      canvas->PlaybackPaintRecord(context.endRecording());
+      currentHeight += pageSizeInPixels.height() + 1;
     }
+    canvas->PlaybackPaintRecord(context.endRecording());
   }
 
  protected:
   // Spools the printed page, a subrect of frame(). Skip the scale step.
   // NativeTheme doesn't play well with scaling. Scaling is done browser side
   // instead. Returns the scale to be applied.
   // On Linux, we don't have the problem with NativeTheme, hence we let WebKit
   // do the scaling and ignore the return value.
   virtual float spoolPage(GraphicsContext& context,
                           int pageNumber,
@@ skipping 2134 matching lines @@
         createMarkup(startPosition, endPosition, AnnotateForInterchange,
                      ConvertBlocksToInlines::NotConvert, ResolveNonLocalURLs);
   } else {
     clipHtml =
         createMarkup(endPosition, startPosition, AnnotateForInterchange,
                      ConvertBlocksToInlines::NotConvert, ResolveNonLocalURLs);
   }
 }
 
 }  // namespace blink