Set defaults for building chrome for linux/arm.

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index 2ec42a280325d643b98fd051adcb71862f6d0189..0466f31a275cdc7d750be64b8556832db5d0269a 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -583,6 +583,14 @@
         }, {
           'enable_settings_app%': 0,
         }],
+
+        ['OS=="linux"', { # and target_arch=="arm" and chromeos==0', {

[iannucci, 2012/12/07 23:54:06]

I'm not sure I'm reading this right, but it looks like this is really just
'OS=="linux"' with a comment after it?

[Sam Clegg, 2012/12/08 00:03:12]

Great catch. Thank you.

Done.

Do you happen to know if chromos builds with OS=linux and chromeos=1?

+          # Set some defaults for arm/linux chrome builds
+          'armv7%': 1,
+          'linux_breakpad%': 0,
+          'linux_use_tcmalloc%': 0,
+          'sysroot%': '<!(cd <(DEPTH)/arm-sysroot && pwd -P)',
+        }], # OS=="linux" and target_arch=="arm"
       ],
 
       # Set this to 1 to use the Google-internal file containing
@@ -1214,7 +1222,6 @@
           }],
         ],
       }],  # OS=="mac"
-
       ['OS=="win"', {
         'conditions': [
           ['component=="shared_library"', {
@@ -2803,7 +2810,7 @@
               # Don't enable multi-threaded linking for 32-bit targets as it
               # causes intermittent crashed on lucid32: http://crbug.com/161942
               # TODO(sbc): remove this once gold bug is fixed
-              ['host_arch!="ia32"', {
+              ['host_arch!="ia32" and host_arch!="arm"', {
                 'ldflags': [
                   # Experimentation found that using four linking threads
                   # saved ~20% of link time.