Since we're only using it on Linux now, just require poppler as a system dependency.

third_party/iconv/README.chromium

Index: third_party/iconv/README.chromium
diff --git a/third_party/iconv/README.chromium b/third_party/iconv/README.chromium
deleted file mode 100644
index e9e4df5e52c0e2f1d1dc99342eb7bd28cb60fa8e..0000000000000000000000000000000000000000
--- a/third_party/iconv/README.chromium
+++ /dev/null
@@ -1,77 +0,0 @@
-Name: libiconv
-Short Name: libiconv
-URL: git://git.savannah.gnu.org/libiconv.git
-Version: 1.14
-License: Libraries under LGPL, program under GPL
-License File: NOT_SHIPPED
-Security Critical: No
-
-Description:
-iconv is a library for converting between different character encodings.
-Used in Skia as a dependency of libpoppler, for PDF rasterization during
-testing.
-
-Local Modifications:
-No changes to files from the upstream repository.
-Platform-specific configuration files added to
-third_party/iconv/config/windows:
-  config.h
-  iconv.h
-  localcharset.h
-
-These files were created from the header templates based on instructions in:
-http://www.codeproject.com/Articles/302012/How-to-Build-libiconv-with-Microsoft-Visual-Studio,
-then kludging it to build. The process used to create them from release
-sources are:
-1. Download the libiconv-1.14 tarball from
-   http://www.gnu.org/software/libiconv/#downloading
-2. Copy and rename these files:
-    (libiconv-1.14)/libcharset/include/localcharset.h.build.in
-      -> third_party/iconv/config/windows/localcharset.h
-    (libiconv-1.14)/include/iconv.h.build.in
-      -> third_party/iconv/config/windows/iconv.h
-    (libiconv-1.14)/config.h.in
-      -> third_party/iconv/config/windows/config.h
-3. Modify localcharset.h as follows:
-    Replace
-      #if @HAVE_VISIBILITY@ && BUILDING_LIBCHARSET
-      #define LIBCHARSET_DLL_EXPORTED __attribute__((__visibility__("default")))
-      #else
-      #define LIBCHARSET_DLL_EXPORTED
-      #endif
-    with
-      #define LIBCHARSET_DLL_EXPORTED
-4. Modify config.h as follows:
-    Delete line 30:
-      #undef EILSEQ
-    Change line 686 to:
-      #define ICONV_CONST const
-5. Modify iconv.h as follows:
-    Replace
-      #if @HAVE_VISIBILITY@ && BUILDING_LIBICONV
-      #define LIBICONV_DLL_EXPORTED __attribute__((__visibility__("default")))
-      #else
-      #define LIBICONV_DLL_EXPORTED
-      #endif
-    with
-      #define LIBICONV_DLL_EXPORTED 
-    Delete all references to @DLL_VARIABLE@ (find and replace with nothing).
-    Find and replace these:
-      @ICONV_CONST@ -> const
-      @USE_MBSTATE_T@ -> USE_MBSTATE_T
-      @BROKEN_WCHAR_H@ -> BROKEN_WCHAR_H
-      @HAVE_WCHAR_T@ -> HAVE_WCHAR_T
-Note: if a dynamic library is needed for whatever reason,
-LIBCHARSET_DLL_EXPORTED and LIBICONV_DLL_EXPORTED needs to be defined as
-either __declspec(dllexport) or __declspec(dllimport).
-
-Autogenerated files (consistent across platforms) added to
-third_party/iconv/config:
-  aliases.h
-  canonical_dos.h
-  canonical.h
-  canonical_local.h
-  flags.h
-
-These files were pulled from a release tarball.
-