Disable NaCl on 32-bit linux, also disable NaCl extension/store tests for that platform.

chrome/browser/extensions/extension_nacl_browsertest.cc

Index: chrome/browser/extensions/extension_nacl_browsertest.cc
===================================================================
--- chrome/browser/extensions/extension_nacl_browsertest.cc	(revision 97323)
+++ chrome/browser/extensions/extension_nacl_browsertest.cc	(working copy)
@@ -93,7 +93,12 @@
 };
 
 // Test that the NaCl plugin isn't blocked for Webstore extensions.
+// DISABLED http://crbug.com/92964
+#if defined(OS_LINUX) && ARCH_CPU_32_BITS
+IN_PROC_BROWSER_TEST_F(NaClExtensionTest, DISABLED_WebStoreExtension) {
+#else
 IN_PROC_BROWSER_TEST_F(NaClExtensionTest, WebStoreExtension) {
+#endif
   ASSERT_TRUE(test_server()->Start());
 
   const Extension* extension = InstallExtension(INSTALL_TYPE_FROM_WEBSTORE);
@@ -111,7 +116,12 @@
 }
 
 // Test that the NaCl plugin isn't blocked for component extensions.
+// DISABLED http://crbug.com/92964
+#if defined(OS_LINUX) && ARCH_CPU_32_BITS
+IN_PROC_BROWSER_TEST_F(NaClExtensionTest, DISABLED_ComponentExtension) {
+#else
 IN_PROC_BROWSER_TEST_F(NaClExtensionTest, ComponentExtension) {
+#endif
   ASSERT_TRUE(test_server()->Start());
 
   const Extension* extension = InstallExtension(INSTALL_TYPE_COMPONENT);
@@ -121,7 +131,12 @@
 }
 
 // Test that the NaCl plugin isn't blocked for unpacked extensions.
+// DISABLED http://crbug.com/92964
+#if defined(OS_LINUX) && ARCH_CPU_32_BITS
+IN_PROC_BROWSER_TEST_F(NaClExtensionTest, DISABLED_UnpackedExtension) {
+#else
 IN_PROC_BROWSER_TEST_F(NaClExtensionTest, UnpackedExtension) {
+#endif
   ASSERT_TRUE(test_server()->Start());
 
   const Extension* extension = InstallExtension(INSTALL_TYPE_UNPACKED);