Fixes for the chromium build ARM and some old x86 platform:

1) Removed SSE2 for ARM in aec.gyp.
2) Removed the re-definition of DISALLOW_COPY_AND_ASSIGN in latebindingsymboltable.h.
3) SSE2 not always supported in some old x86 platform.
Review URL: http://webrtc-codereview.appspot.com/80002

git-svn-id: http://webrtc.googlecode.com/svn/trunk@224 4adac7df-926f-26a2-2b94-8c16560cd09d

src/modules/audio_processing/aec/main/source/aec.gyp

@@ -30,14 +30,20 @@
         '../interface/echo_cancellation.h',
         'echo_cancellation.c',
         'aec_core.c',
-        'aec_core_sse2.c',
         'aec_rdft.h',
         'aec_rdft.c',
-        'aec_rdft_sse2.c',
         'aec_core.h',
         'resampler.c',
         'resampler.h',
       ],
+      'conditions': [
+        ['target_arch == "ia32" or target_arch == "x64"', {
+          'sources': [
+            'aec_core_sse2.c',
+            'aec_rdft_sse2.c',
+          ],
+        }],
+      ],
     },
   ],
 }

src/modules/audio_processing/aec/main/source/aec_rdft_sse2.c

@@ -8,6 +8,7 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
+#if defined(__SSE2__)
 #include <emmintrin.h>
 
 #include "aec_rdft.h"
@@ -207,3 +208,5 @@ void aec_rdft_init_sse2(void) {
   rftfsub_128 = rftfsub_128_SSE2;
   rftbsub_128 = rftbsub_128_SSE2;
 }
+
+#endif  // __SSE2__