Retrieve and pass subpixel lcd geometry on windows

ui/gfx/font_render_params.cc

 // Copyright 2014 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 "ui/gfx/font_render_params.h"
 
+#include "base/logging.h"
+
 namespace gfx {
 
 FontRenderParams::FontRenderParams()
     : antialiasing(true),
       subpixel_positioning(true),
       autohinter(false),
       use_bitmaps(false),
       hinting(HINTING_MEDIUM),
       subpixel_rendering(SUBPIXEL_RENDERING_NONE) {
 }
 
 FontRenderParams::~FontRenderParams() {}
 
+// static
+SkFontHost::LCDOrder FontRenderParams::SubpixelRenderingToSkiaLCDOrder(
+    FontRenderParams::SubpixelRendering subpixel_rendering) {
+  switch (subpixel_rendering) {
+    case gfx::FontRenderParams::SUBPIXEL_RENDERING_NONE:
+    case gfx::FontRenderParams::SUBPIXEL_RENDERING_RGB:
+    case gfx::FontRenderParams::SUBPIXEL_RENDERING_VRGB:
+      return SkFontHost::kRGB_LCDOrder;
+    case gfx::FontRenderParams::SUBPIXEL_RENDERING_BGR:
+    case gfx::FontRenderParams::SUBPIXEL_RENDERING_VBGR:
+      return SkFontHost::kBGR_LCDOrder;
+  }
+
+  NOTREACHED();
+  return SkFontHost::kRGB_LCDOrder;
+}
+
+// static
+SkFontHost::LCDOrientation
+FontRenderParams::SubpixelRenderingToSkiaLCDOrientation(
+    FontRenderParams::SubpixelRendering subpixel_rendering) {
+  switch (subpixel_rendering) {
+    case gfx::FontRenderParams::SUBPIXEL_RENDERING_NONE:
+    case gfx::FontRenderParams::SUBPIXEL_RENDERING_RGB:
+    case gfx::FontRenderParams::SUBPIXEL_RENDERING_BGR:
+      return SkFontHost::kHorizontal_LCDOrientation;
+    case gfx::FontRenderParams::SUBPIXEL_RENDERING_VRGB:
+    case gfx::FontRenderParams::SUBPIXEL_RENDERING_VBGR:
+      return SkFontHost::kVertical_LCDOrientation;
+  }
+
+  NOTREACHED();
+  return SkFontHost::kHorizontal_LCDOrientation;
+}
+
 FontRenderParamsQuery::FontRenderParamsQuery(bool for_web_contents)
     : for_web_contents(for_web_contents),
       pixel_size(0),
       point_size(0),
       style(-1),
       device_scale_factor(0) {
 }
 
 FontRenderParamsQuery::~FontRenderParamsQuery() {}
 
 }  // namespace gfx