Disable bundled PPAPI Flash on Linux ia32 when SSE2 is not available.

chrome/common/chrome_content_client.cc

Index: chrome/common/chrome_content_client.cc
diff --git a/chrome/common/chrome_content_client.cc b/chrome/common/chrome_content_client.cc
index 51730d57dcee874753b8ac9ffcd5e673b0c73f5e..7420e7998fd555d85a37364e8506793235c75cd0 100644
--- a/chrome/common/chrome_content_client.cc
+++ b/chrome/common/chrome_content_client.cc
@@ -5,6 +5,7 @@
 #include "chrome/common/chrome_content_client.h"
 
 #include "base/command_line.h"
+#include "base/cpu.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
@@ -13,6 +14,7 @@
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
+#include "build/build_config.h"
 #include "chrome/common/child_process_logging.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
@@ -258,6 +260,12 @@ bool GetBundledPepperFlash(content::PepperPluginInfo* plugin,
   if (force_disable)
     return false;
 
+// For Linux ia32, Flapper requires SSE2.
+#if defined(OS_LINUX) && defined(ARCH_CPU_X86)
+  if (!base::CPU()::has_sse2())
+    return false;
+#endif  // ARCH_CPU_X86
+
   FilePath flash_path;
   if (!PathService::Get(chrome::FILE_PEPPER_FLASH_PLUGIN, &flash_path))
     return false;