Zero out the cpuinfo to make valgrind happy.

BUG=91
TEST=build bot
Review URL: https://webrtc-codereview.appspot.com/860015

git-svn-id: http://libyuv.googlecode.com/svn/trunk@414 16f28f9a-4ce2-e073-06de-1de4eb20be90

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 413
+Version: 414
 License: BSD
 License File: LICENSE
 

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 413
+#define LIBYUV_VERSION 414
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT

source/cpu_id.cc

@@ -139,7 +139,7 @@ static bool TestEnv(const char* name) {
 LIBYUV_API
 int InitCpuFlags(void) {
 #if !defined(__CLR_VER) && defined(CPU_X86)
-  int cpu_info[4];
+  int cpu_info[4] = { 0, 0, 0, 0 };
   __cpuid(cpu_info, 1);
   cpu_info_ = ((cpu_info[3] & 0x04000000) ? kCpuHasSSE2 : 0) |
               ((cpu_info[2] & 0x00000200) ? kCpuHasSSSE3 : 0) |