Fix compile issues in sky on android

sky/viewer/platform/webthemeengine_impl.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 "sky/viewer/platform/webthemeengine_impl.h"
 
 #include "skia/ext/platform_canvas.h"
 #include "sky/engine/public/platform/WebRect.h"
 #include "sky/engine/public/platform/WebSize.h"
 #include "ui/native_theme/native_theme.h"
 
 using blink::WebCanvas;
 using blink::WebColor;
 using blink::WebRect;
 using blink::WebThemeEngine;
 
 namespace sky {
 
+#if !defined(OS_ANDROID)
 static ui::NativeTheme::Part NativeThemePart(
     WebThemeEngine::Part part) {
   switch (part) {
     case WebThemeEngine::PartScrollbarDownArrow:
       return ui::NativeTheme::kScrollbarDownArrow;
     case WebThemeEngine::PartScrollbarLeftArrow:
       return ui::NativeTheme::kScrollbarLeftArrow;
     case WebThemeEngine::PartScrollbarRightArrow:
       return ui::NativeTheme::kScrollbarRightArrow;
     case WebThemeEngine::PartScrollbarUpArrow:
@@ skipping 39 matching lines @@
     case WebThemeEngine::StateHover:
       return ui::NativeTheme::kHovered;
     case WebThemeEngine::StateNormal:
       return ui::NativeTheme::kNormal;
     case WebThemeEngine::StatePressed:
       return ui::NativeTheme::kPressed;
     default:
       return ui::NativeTheme::kDisabled;
   }
 }
+#endif
 
 static void GetNativeThemeExtraParams(
     WebThemeEngine::Part part,
     WebThemeEngine::State state,
     const WebThemeEngine::ExtraParams* extra_params,
     ui::NativeTheme::ExtraParams* native_theme_extra_params) {
   switch (part) {
     case WebThemeEngine::PartScrollbarHorizontalTrack:
     case WebThemeEngine::PartScrollbarVerticalTrack:
       native_theme_extra_params->scrollbar_track.track_x =
@@ skipping 66 matching lines @@
           extra_params->progressBar.valueRectWidth;
       native_theme_extra_params->progress_bar.value_rect_height =
           extra_params->progressBar.valueRectHeight;
       break;
     default:
       break;  // Parts that have no extra params get here.
   }
 }
 
 blink::WebSize WebThemeEngineImpl::getSize(WebThemeEngine::Part part) {
+#if defined(OS_ANDROID)
+  return blink::WebSize();
+#else
   ui::NativeTheme::ExtraParams extra;
   return ui::NativeTheme::instance()->GetPartSize(NativeThemePart(part),
                                                    ui::NativeTheme::kNormal,
                                                    extra);
+#endif
 }
 
 void WebThemeEngineImpl::paint(
     blink::WebCanvas* canvas,
     WebThemeEngine::Part part,
     WebThemeEngine::State state,
     const blink::WebRect& rect,
     const WebThemeEngine::ExtraParams* extra_params) {
   ui::NativeTheme::ExtraParams native_theme_extra_params;
   GetNativeThemeExtraParams(
       part, state, extra_params, &native_theme_extra_params);
+#if !defined(OS_ANDROID)
   ui::NativeTheme::instance()->Paint(
       canvas,
       NativeThemePart(part),
       NativeThemeState(state),
       gfx::Rect(rect),
       native_theme_extra_params);
+#endif
 }
 
 void WebThemeEngineImpl::paintStateTransition(blink::WebCanvas* canvas,
                                               WebThemeEngine::Part part,
                                               WebThemeEngine::State startState,
                                               WebThemeEngine::State endState,
                                               double progress,
                                               const blink::WebRect& rect) {
+#if !defined(OS_ANDROID)
   ui::NativeTheme::instance()->PaintStateTransition(
       canvas,
       NativeThemePart(part),
       NativeThemeState(startState),
       NativeThemeState(endState),
       progress,
       gfx::Rect(rect));
+#endif
 }
 
 }  // namespace sky