Actually link with instrumented libraries when building with tsan=1 and use_instrumented_libraries=1

build/common.gypi

Index: build/common.gypi
===================================================================
--- build/common.gypi	(revision 257086)
+++ build/common.gypi	(working copy)
@@ -3616,6 +3616,17 @@
                   }],
                 ],
               }],
+              ['tsan==1', {
+                'target_conditions': [
+                  ['_toolset=="target"', {
+                    'ldflags': [
+                      # Add RPATH to result binary to make it linking instrumented libraries ($ORIGIN means relative RPATH)
+                      '-Wl,-R,\$$ORIGIN/instrumented_libraries/tsan/lib/:\$$ORIGIN/instrumented_libraries/tsan/usr/lib/x86_64-linux-gnu/',
+                      '-Wl,-z,origin',
+                    ],
+                  }],
+                ],
+              }],
             ],
           }],
           ['use_custom_libcxx==1', {