Linux: Flush cairo surface at end of CanvasPaintLinux.

chrome/renderer/webplugin_delegate_proxy.cc

 // Copyright (c) 2009 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/webplugin_delegate_proxy.h"
 
 #if defined(TOOLKIT_USES_GTK)
 #include <gtk/gtk.h>
 #endif
 
@@ skipping 851 matching lines @@
             CGBitmapContextGetBitsPerPixel(bg_context));
   const unsigned char* bg_bytes = static_cast<const unsigned char*>(
       CGBitmapContextGetData(bg_context));
   int full_bg_width = CGBitmapContextGetWidth(bg_context);
   int full_bg_height = CGBitmapContextGetHeight(bg_context);
   int bg_stride = CGBitmapContextGetBytesPerRow(bg_context);
   int bg_last_row = CGBitmapContextGetHeight(bg_context) - 1;
 
   int bytes_per_pixel = CGBitmapContextGetBitsPerPixel(context) / 8;
 #else
+  cairo_surface_flush(page_surface);
   const unsigned char* page_bytes = cairo_image_surface_get_data(page_surface);
   int page_stride = cairo_image_surface_get_stride(page_surface);
   int page_start_x = static_cast<int>(page_x_double);
   int page_start_y = static_cast<int>(page_y_double);
 
   skia::PlatformDevice& device =
       background_store_canvas_->getTopPlatformDevice();
   cairo_surface_t* bg_surface = cairo_get_target(device.beginPlatformPaint());
   DCHECK_EQ(cairo_surface_get_type(bg_surface), CAIRO_SURFACE_TYPE_IMAGE);
   DCHECK_EQ(cairo_image_surface_get_format(bg_surface), CAIRO_FORMAT_ARGB32);
+  cairo_surface_flush(bg_surface);
   const unsigned char* bg_bytes = cairo_image_surface_get_data(bg_surface);
   int full_bg_width = cairo_image_surface_get_width(bg_surface);
   int full_bg_height = cairo_image_surface_get_height(bg_surface);
   int bg_stride = cairo_image_surface_get_stride(bg_surface);
 
   int bytes_per_pixel = 4;  // ARGB32 = 4 bytes per pixel.
 #endif
 
   int damage_width = content_rect.width();
   int damage_height = content_rect.height();
@@ skipping 661 matching lines @@
     if (index->mime_type == "application/x-vnd.moveplayer.qm" ||
         index->mime_type == "application/x-vnd.moveplay2.qm" ||
         index->mime_type == "application/x-vnd.movenetworks.qm" ||
         index->mime_type == "application/x-vnd.mnplayer.qm") {
       return true;
     }
   }
   return false;
 }
 #endif