Pass the gold binary directory to the linker with an absolute path

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index ac572ed178cac5a054e8c55e00bbb51d3281753b..500dd9c1ab7bd5dfa11efc419ebbf485bb0c60a3 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -3521,7 +3521,7 @@
                         'ldflags': [
                           # As long as -fuse-ld=gold doesn't work, add a dummy directory
                           # with an 'ld' that redirects to gold, so that clang uses gold.
-                          '-B<(PRODUCT_DIR)/../../build/android/arm-linux-androideabi-gold',
+                          '-B<!(cd <(DEPTH) && pwd -P)/build/android/arm-linux-androideabi-gold',

[cjhopman, 2014/05/10 00:28:05]

We should be able to specify this like:
<(DEPTH)/build/...
but the generated ninja files will actually run the linker commands in
<(PRODUCT_DIR) instead of the directory of defining gyp file (like it does for
actions/rules/etc).

Since <(PRODUCT_DIR) is not resolvable at gyp-time to an actual path, we can't
calculate the proper relative path from PRODUCT_DIR to DEPTH.

                         ],
                       }],
                       ['asan==1', {