mac: Only use the flag -gline-tables-only for release builds.

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index c5a8facb9e1122e7fce09a5cdfaca06c486d7047..5ade56996698583f9b503385897f7350c9c9c507 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -5119,6 +5119,22 @@
             }],
           ],
         },
+        'configurations': {
+          'Release_Base': {
+            'conditions': [
+              ['branding=="Chrome" and buildtype=="Official"', {
+                'xcode_settings': {
+                  'OTHER_CFLAGS': [
+                    # The Google Chrome Framework dSYM generated by dsymutil has
+                    # grown larger than 4GB, which dsymutil can't handle. Reduce
+                    # the amount of debug symbols.
+                    '-gline-tables-only',  # See http://crbug.com/479841
+                  ]
+                },
+              }],
+            ],
+          },  # configuration "Release"
+        },  # configurations
         'xcode_settings': {
           'GCC_DYNAMIC_NO_PIC': 'NO',               # No -mdynamic-no-pic
                                                     # (Equivalent to -fPIC)
@@ -5136,16 +5152,6 @@
             # specified or not.
             '-fno-strict-aliasing',  # See http://crbug.com/32204.
           ],
-          'conditions': [
-            ['branding=="Chrome" and buildtype=="Official"', {
-              'OTHER_CFLAGS': [
-                # The Google Chrome Framework dSYM generated by dsymutil has
-                # grown larger than 4GB, which dsymutil can't handle. Reduce
-                # the amount of debug symbols.
-                '-gline-tables-only',  # See http://crbug.com/479841
-              ]
-            }],
-          ],
         },
         'target_conditions': [
           ['_type=="executable"', {