aura: A few changes to have aura_demo compile and run on linux.

ui/gfx/gtk_util.cc

Index: ui/gfx/gtk_util.cc
diff --git a/ui/gfx/gtk_util.cc b/ui/gfx/gtk_util.cc
index fb5a31d2fac2f2085b4c83738a007c8f8cbb76ee..beb2017288501e9d4027dc920aea8d6d52980473 100644
--- a/ui/gfx/gtk_util.cc
+++ b/ui/gfx/gtk_util.cc
@@ -55,34 +55,6 @@ void FreePixels(guchar* pixels, gpointer data) {
   free(data);
 }
 
-// Common implementation of ConvertAcceleratorsFromWindowsStyle() and
-// RemoveWindowsStyleAccelerators().
-// Replaces all ampersands (as used in our grd files to indicate mnemonics)
-// to |target|. Similarly any underscores get replaced with two underscores as
-// is needed by GTK.
-std::string ConvertAmperstandsTo(const std::string& label,
-                                 const std::string& target) {
-  std::string ret;
-  ret.reserve(label.length() * 2);
-  for (size_t i = 0; i < label.length(); ++i) {
-    if ('_' == label[i]) {
-      ret.push_back('_');
-      ret.push_back('_');
-    } else if ('&' == label[i]) {
-      if (i + 1 < label.length() && '&' == label[i + 1]) {
-        ret.push_back('&');
-        ++i;
-      } else {
-        ret.append(target);
-      }
-    } else {
-      ret.push_back(label[i]);
-    }
-  }
-
-  return ret;
-}
-
 }  // namespace
 
 namespace gfx {
@@ -164,59 +136,15 @@ void SubtractRectanglesFromRegion(GdkRegion* region,
   }
 }
 
-PangoContext* GetPangoContext() {
-#if defined(USE_WAYLAND)
-  PangoFontMap* font_map = pango_cairo_font_map_get_default();
-  PangoContext* default_context = pango_font_map_create_context(font_map);
-#else
-  PangoContext* default_context = gdk_pango_context_get();
-#endif
-  return default_context;
-}
-
-double GetPangoResolution() {
-  static double resolution;
-  static bool determined_resolution = false;
-  if (!determined_resolution) {
-    determined_resolution = true;
-    PangoContext* default_context = GetPangoContext();
-    resolution = pango_cairo_context_get_resolution(default_context);
-    g_object_unref(default_context);
-  }
-  return resolution;
-}
-
 GdkCursor* GetCursor(int type) {
   static GdkCursorCache impl;
   return impl.GetCursorImpl(static_cast<GdkCursorType>(type));
 }
 
-std::string ConvertAcceleratorsFromWindowsStyle(const std::string& label) {
-  return ConvertAmperstandsTo(label, "_");
-}
-
-std::string RemoveWindowsStyleAccelerators(const std::string& label) {
-  return ConvertAmperstandsTo(label, "");
-}
-
-uint8_t* BGRAToRGBA(const uint8_t* pixels, int width, int height, int stride) {
-  if (stride == 0)
-    stride = width * 4;
-
-  uint8_t* new_pixels = static_cast<uint8_t*>(malloc(height * stride));
-
-  // We have to copy the pixels and swap from BGRA to RGBA.
-  for (int i = 0; i < height; ++i) {
-    for (int j = 0; j < width; ++j) {
-      int idx = i * stride + j * 4;
-      new_pixels[idx] = pixels[idx + 2];
-      new_pixels[idx + 1] = pixels[idx + 1];
-      new_pixels[idx + 2] = pixels[idx];
-      new_pixels[idx + 3] = pixels[idx + 3];
-    }
-  }
-
-  return new_pixels;
+#if !defined(USE_WAYLAND) && !defined(USE_AURA)
+PangoContext* GetPangoContext() {
+  return gdk_pango_context_get();
 }
+#endif
 
 }  // namespace gfx