(Not ready for review!) Toolbar and views high dpi support.

skia/ext/bitmap_platform_device_win.cc

Index: skia/ext/bitmap_platform_device_win.cc
diff --git a/skia/ext/bitmap_platform_device_win.cc b/skia/ext/bitmap_platform_device_win.cc
index 201866aa17ef79da7cbef12ddd6b75b0e93ea90b..a34b316f11805f6c104e6f0f043db5888c8859bc 100644
--- a/skia/ext/bitmap_platform_device_win.cc
+++ b/skia/ext/bitmap_platform_device_win.cc
@@ -259,7 +259,8 @@ void BitmapPlatformDevice::DrawToNativeContext(HDC dc, int x, int y,
   // upper left anymore
   SkMatrix identity;
   identity.reset();
-
+  SkMatrix t = data_->transform();
+  if (t.isIdentity()) {
   LoadTransformToDC(source_dc, identity);
   if (isOpaque()) {
     BitBlt(dc,
@@ -287,7 +288,7 @@ void BitmapPlatformDevice::DrawToNativeContext(HDC dc, int x, int y,
                   blend_function);
   }
   LoadTransformToDC(source_dc, data_->transform());
-
+  }
   EndPlatformPaint();
   if (created_dc)
     data_->ReleaseBitmapDC();