Bug 643112 - Fix IPC build on Linux powerpc. r=bsmedberg

ipc/chromium/Makefile.in

@@ -246,7 +246,6 @@ ifdef OS_LINUX # {
 CPPSRCS += \
   atomicops_internals_x86_gcc.cc \
   base_paths_linux.cc \
-  data_pack.cc \
   file_util_linux.cc \
   file_version_info_linux.cc \
   idle_timer_none.cc \

ipc/chromium/src/build/build_config.h

@@ -57,7 +57,7 @@
 #define ARCH_CPU_ARMEL 1
 #define ARCH_CPU_32_BITS 1
 #define WCHAR_T_IS_UNSIGNED 1
-#elif defined(__ppc__)
+#elif defined(__ppc__) || defined(__powerpc__)
 #define ARCH_CPU_PPC 1
 #define ARCH_CPU_32_BITS 1
 #else