More fixes to make 32 bit Linux builds pass compile.

testing/chromoting/chromoting_integration_tests.isolate

Index: testing/chromoting/chromoting_integration_tests.isolate
diff --git a/testing/chromoting/chromoting_integration_tests.isolate b/testing/chromoting/chromoting_integration_tests.isolate
index 92dfb74a5b00dc76028012f119e9c45649bb44ed..a0145f70058a4d55c9c5ada241e5a0abef7812e9 100644
--- a/testing/chromoting/chromoting_integration_tests.isolate
+++ b/testing/chromoting/chromoting_integration_tests.isolate
@@ -19,12 +19,18 @@
           '../xvfb.py',
           '<(PRODUCT_DIR)/libffmpegsumo.so',
           '<(PRODUCT_DIR)/libosmesa.so',
-          '<(PRODUCT_DIR)/nacl_irt_x86_64.nexe',
           '<(PRODUCT_DIR)/xdisplaycheck<(EXECUTABLE_SUFFIX)',
         ],
       },
     }],
-     ['OS=="linux" or OS=="mac" or OS=="win"', {
+    ['OS=="linux" and target_arch=="x64"', {
+      'variables': {
+        'isolate_dependency_tracked': [
+          '<(PRODUCT_DIR)/nacl_irt_x86_64.nexe',
+        ],
+      },
+    }],
+    ['OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'isolate_dependency_tracked': [
           '../test_env.py',