Handle is_opaque correctly in raster_handle_allocator_win

skia/ext/raster_handle_allocator_win.cc

 // Copyright (c) 2017 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 <windows.h>
 #include <psapi.h>
 #include <stddef.h>
 
 #include "base/debug/gdi_debug_util_win.h"
 #include "base/memory/ptr_util.h"
@@ skipping 100 matching lines @@
 }  // namespace
 
 namespace skia {
 
 std::unique_ptr<SkCanvas> CreatePlatformCanvasWithSharedSection(
     int width,
     int height,
     bool is_opaque,
     HANDLE shared_section,
     OnFailureType failure_type) {
-  SkAlphaType alpha = is_opaque ? kPremul_SkAlphaType : kOpaque_SkAlphaType;
+  SkAlphaType alpha = is_opaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType;
   SkImageInfo info = SkImageInfo::MakeN32(width, height, alpha);
   size_t row_bytes = PlatformCanvasStrideForWidth(width);
 
   // This function contains an implementation of a Skia platform bitmap for
   // drawing and compositing graphics. The original implementation uses Windows
   // GDI to create the backing bitmap memory, however it's possible for a
   // process to not have access to GDI which will cause this code to fail. It's
   // possible to detect when GDI is unavailable and instead directly map the
   // shared memory as the bitmap.
   if (base::win::IsUser32AndGdi32Available()) {
@@ skipping 12 matching lines @@
   if (failure_type == CRASH_ON_FAILURE)
     SK_CRASH();
   return nullptr;
 }
 
 HDC GetNativeDrawingContext(SkCanvas* canvas) {
   return canvas ? static_cast<HDC>(canvas->accessTopRasterHandle()) : nullptr;
 }
 
 }  // namespace skia