Fixes for -Wunused-function on Linux, Android and ChromeOS

chrome/browser/ui/views/panels/panel_frame_view.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 "chrome/browser/ui/views/panels/panel_frame_view.h"
 
 #include "chrome/browser/ui/panels/panel.h"
 #include "chrome/browser/ui/panels/panel_constants.h"
 #include "chrome/browser/ui/views/panels/panel_view.h"
 #include "chrome/browser/ui/views/tab_icon_view.h"
@@ skipping 50 matching lines @@
 
 // Color used to draw the title text under default theme.
 const SkColor kTitleTextDefaultColor = SkColorSetRGB(0xf9, 0xf9, 0xf9);
 
 gfx::ImageSkia* CreateImageForColor(SkColor color) {
   gfx::Canvas canvas(gfx::Size(1, 1), 1.0f, true);
   canvas.DrawColor(color);
   return new gfx::ImageSkia(canvas.ExtractImageRep());
 }
 
+#if defined(OS_WIN)
 const gfx::ImageSkia& GetTopLeftCornerImage(panel::CornerStyle corner_style) {
   static gfx::ImageSkia* rounded_image = NULL;
   static gfx::ImageSkia* non_rounded_image = NULL;
   if (!rounded_image) {
     ResourceBundle& rb = ResourceBundle::GetSharedInstance();
     rounded_image = rb.GetImageSkiaNamed(IDR_WINDOW_TOP_LEFT_CORNER);
     non_rounded_image = rb.GetImageSkiaNamed(IDR_PANEL_TOP_LEFT_CORNER);
   }
   return (corner_style & panel::TOP_ROUNDED) ? *rounded_image
                                              : *non_rounded_image;
@@ skipping 65 matching lines @@
 }
 
 const gfx::ImageSkia& GetRightEdgeImage() {
   static gfx::ImageSkia* image = NULL;
   if (!image) {
     ResourceBundle& rb = ResourceBundle::GetSharedInstance();
     image = rb.GetImageSkiaNamed(IDR_WINDOW_RIGHT_SIDE);
   }
   return *image;
 }
+#endif  // defined(OS_WIN)
 
 const gfx::Font& GetTitleFont() {
   static gfx::Font* font = NULL;
   if (!font)
     font = new gfx::Font(kTitleFontName, kTitleFontSize);
   return *font;
 }
 
 const gfx::ImageSkia* GetActiveBackgroundDefaultImage() {
   static gfx::ImageSkia* image = NULL;
@@ skipping 594 matching lines @@
 
   // Draw the left border.
   canvas->TileImageInt(left_image,
                        0,
                        top_left_image.height(),
                        left_image.width(),
                        height() - top_left_image.height() -
                            bottom_left_image.height());
 #endif
 }