Linux: include an updated copy of xdg-mime that fixes default browser selection on KDE 4.

chrome/tools/build/linux/chrome-wrapper

 #!/bin/sh
 
-# Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
+# Copyright (c) 2010 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.
 
 # Running Chromium via this script makes it possible to set Chromium as the
 # default browser directly out of a compile, without needing to package it.
 
 DESKTOP="chromium-devel"
 TITLE="Chromium"
 
-# Check to see if there is a desktop file of the given name
+# Check to see if there is a desktop file of the given name.
 exists_desktop_file() {
     # Build a search list from $XDG_DATA_HOME and $XDG_DATA_DIRS, the latter
     # of which can itself be a colon-separated list of directories to search.
     search="${XDG_DATA_HOME:-$HOME/.local/share}:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
     IFS=:
     for dir in $search; do
         unset IFS
         [ "$dir" -a -d "$dir/applications" ] || continue
         [ -r "$dir/applications/$DESKTOP.desktop" ] && return
     done
-    # Didn't find it in the search path
+    # Didn't find it in the search path.
     return 1
 }
 
-# Checks a file to see if it's a 32 or 64-bit
+# Checks a file to see if it's a 32 or 64-bit.
 check_executable() {
     out=$(file $(readlink -f $1) 2> /dev/null)
     echo $out | grep -qs "ELF 32-bit LSB"
     if [ $? = 0 ]; then
         echo 32
         return
     fi
     echo $out | grep -qs "ELF 64-bit LSB"
     if [ $? = 0 ]; then
         echo 64
         return
     fi
     echo neither
 }
 
-# Generate a desktop file that will run this script
+# Generate a desktop file that will run this script.
 generate_desktop_file() {
     apps="${XDG_DATA_HOME:-$HOME/.local/share}/applications"
     mkdir -p "$apps"
     cat > "$apps/$DESKTOP.desktop" << EOF
 [Desktop Entry]
 Version=1.0
 Encoding=UTF-8
 Name=$TITLE
 Exec=$CHROME_WRAPPER %U
 Terminal=false
 Icon=$HERE/product_logo_48.png
 Type=Application
 Categories=Application;Network;WebBrowser;
 MimeType=text/html;text/xml;application/xhtml_xml;
 EOF
 }
 
-# Let the wrapped binary know that it has been run through the wrapper
+# Let the wrapped binary know that it has been run through the wrapper.
 export CHROME_WRAPPER="`readlink -f "$0"`"
 export CHROME_DESKTOP="$DESKTOP.desktop"
 
 HERE="`dirname "$CHROME_WRAPPER"`"
 
+# We include some xdg utilities next to the binary, and we want to prefer them
+# over the system versions because we know they work correctly for us. But if
+# our path already exists, we leave it where it is, to allow overriding this.

[Lei Zhang, 2010/08/31 20:50:59]

Can you add a note to say we'll flip the ordering of $PATH and $HERE back when
most Linux distros have picked up our xdg changes?

 case ":$PATH:" in
   *:$HERE:*)
-    # $PATH already contains $HERE
+    # $PATH already contains $HERE, leave it where it is.
     ;;
   *)
-    # Append $HERE to $PATH
-    export PATH="$PATH:$HERE"
+    # Prepend $HERE to $PATH.
+    export PATH="$HERE:$PATH"
     ;;
 esac
 
 # Always use our ffmpeg and other shared libs.
 export LD_LIBRARY_PATH="$HERE:$HERE/lib:$HERE/lib.target:$LD_LIBRARY_PATH"
 
 MISSING_LIBS=$(ldd "$HERE/chrome" 2> /dev/null |grep "not found$" | cut -d" " -f 1|sed 's/\t//')
 CHROME_ARCH=$(check_executable "$HERE/chrome")
 uname -m | grep -qs x86_64
 if [ $? = 1 ]; then
@@ skipping 34 matching lines @@
     fi
 done
 
 # Custom version string for this release. This can be used to add a downstream
 # vendor string or release channel information.
 export CHROME_VERSION_EXTRA="custom"
 
 exists_desktop_file || generate_desktop_file
 
 exec "$HERE/chrome" "$@"