Remove implicit HANDLE conversions from printing.

printing/emf_win.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 "printing/emf_win.h"
 
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 77 matching lines @@
     }
     return 1;  // Continue enumeration
 }
 
 // Bitmapt for rasterization.
 class RasterBitmap {
  public:
   explicit RasterBitmap(const gfx::Size& raster_size)
       : saved_object_(NULL) {
     context_.Set(::CreateCompatibleDC(NULL));
-    if (!context_) {
+    if (!context_.IsValid()) {
       NOTREACHED() << "Bitmap DC creation failed";
       return;
     }
-    ::SetGraphicsMode(context_, GM_ADVANCED);
+    ::SetGraphicsMode(context_.Get(), GM_ADVANCED);
     void* bits = NULL;
     gfx::Rect bitmap_rect(raster_size);
     gfx::CreateBitmapHeader(raster_size.width(), raster_size.height(),
                             &header_.bmiHeader);
-    bitmap_.Set(::CreateDIBSection(context_, &header_, DIB_RGB_COLORS, &bits,
-                                   NULL, 0));
+    bitmap_.Set(::CreateDIBSection(context_.Get(), &header_, DIB_RGB_COLORS,
+                                   &bits, NULL, 0));
     if (!bitmap_)
       NOTREACHED() << "Raster bitmap creation for printing failed";
 
-    saved_object_ = ::SelectObject(context_, bitmap_);
+    saved_object_ = ::SelectObject(context_.Get(), bitmap_);
     RECT rect = bitmap_rect.ToRECT();
-    ::FillRect(context_, &rect,
+    ::FillRect(context_.Get(), &rect,
                static_cast<HBRUSH>(::GetStockObject(WHITE_BRUSH)));
 
   }
 
   ~RasterBitmap() {
-    ::SelectObject(context_, saved_object_);
+    ::SelectObject(context_.Get(), saved_object_);
   }
 
   HDC context() const {
-    return context_;
+    return context_.Get();
   }
 
   base::win::ScopedCreateDC context_;
   BITMAPINFO header_;
   base::win::ScopedBitmap bitmap_;
   HGDIOBJ saved_object_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(RasterBitmap);
 };
@@ skipping 455 matching lines @@
   RECT rect = page_bounds.ToRECT();
   ::EnumEnhMetaFile(hdc, emf(), &RasterizeAlphaBlendProc, &bitmap_dc, &rect);
 
   result->FinishDocument();
 
   return result.Pass();
 }
 
 
 }  // namespace printing