Remove BackingStoreGtk::CairoShowRect().

content/browser/renderer_host/backing_store_gtk.cc

 // Copyright (c) 2012 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 "content/browser/renderer_host/backing_store_gtk.h"
 
 #include <cairo-xlib.h>
 #include <gtk/gtk.h>
 #include <stdlib.h>
 #include <sys/ipc.h>
@@ skipping 646 matching lines @@
   }
 }
 
 void BackingStoreGtk::XShowRect(const gfx::Point &origin,
                                 const gfx::Rect& rect, XID target) {
   XCopyArea(display_, pixmap_, target, static_cast<GC>(pixmap_gc_),
             rect.x(), rect.y(), rect.width(), rect.height(),
             rect.x() + origin.x(), rect.y() + origin.y());
 }
 
-void BackingStoreGtk::CairoShowRect(const gfx::Rect& rect,
-                                    GdkDrawable* drawable) {
-  cairo_surface_t* surface = cairo_xlib_surface_create(
-      display_, pixmap_, static_cast<Visual*>(visual_),
-      size().width(), size().height());
-  cairo_t* cr = gdk_cairo_create(drawable);
-  cairo_set_source_surface(cr, surface, 0, 0);
-
-  cairo_rectangle(cr, rect.x(), rect.y(), rect.width(), rect.height());
-  cairo_fill(cr);
-  cairo_destroy(cr);
-  cairo_surface_destroy(surface);
-}
-
 #if defined(TOOLKIT_GTK)
 void BackingStoreGtk::PaintToRect(const gfx::Rect& rect, GdkDrawable* target) {
   cairo_surface_t* surface = cairo_xlib_surface_create(
       display_, pixmap_, static_cast<Visual*>(visual_),
       size().width(), size().height());
   cairo_t* cr = gdk_cairo_create(target);
 
   cairo_translate(cr, rect.x(), rect.y());
   double x_scale = static_cast<double>(rect.width()) / size().width();
   double y_scale = static_cast<double>(rect.height()) / size().height();
   cairo_scale(cr, x_scale, y_scale);
 
   cairo_pattern_t* pattern = cairo_pattern_create_for_surface(surface);
   cairo_pattern_set_filter(pattern, CAIRO_FILTER_BEST);
   cairo_set_source(cr, pattern);
   cairo_pattern_destroy(pattern);
 
   cairo_identity_matrix(cr);
 
   cairo_rectangle(cr, rect.x(), rect.y(), rect.width(), rect.height());
   cairo_fill(cr);
   cairo_destroy(cr);
 }
 #endif
 
 }  // namespace content