linux: Build with -fPIC on all arches but x86 32-bit.

I will watch the bots to see if this affects performance.

BUG=26625
TEST=compiles

Review URL: http://codereview.chromium.org/3501001

git-svn-id: http://src.chromium.org/svn/trunk/src/build@61208 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

common.gypi

@@ -93,6 +93,14 @@
         }, {
           'use_gnome_keyring%': 1,
         }],
+
+        # Set to 1 compile with -fPIC cflag on linux. This is a must for shared
+        # libraries on linux x86-64 and arm.
+        ['host_arch=="ia32"', {
+          'linux_fpic%': 0,
+        }, {
+          'linux_fpic%': 1,
+        }],
       ],
 
       'host_arch%': '<(host_arch)',
@@ -101,7 +109,7 @@
       # building on.
       'target_arch%': '<(host_arch)',
 
-      # Copy conditionally-set chromeos and touchui variables out one scope.
+      # Copy conditionally-set variables out one scope.
       'chromeos%': '<(chromeos)',
       'touchui%': '<(touchui)',
 
@@ -114,10 +122,6 @@
       # compilation.
       'fastbuild%': 0,
 
-      # Set to 1 compile with -fPIC cflag on linux. This is a must for shared
-      # libraries on linux x86-64 and arm.
-      'linux_fpic%': 0,
-
       # Python version.
       'python_ver%': '2.5',
 
@@ -154,11 +158,11 @@
     'host_arch%': '<(host_arch)',
     'toolkit_views%': '<(toolkit_views)',
     'use_gnome_keyring%': '<(use_gnome_keyring)',
+    'linux_fpic%': '<(linux_fpic)',
     'chromeos%': '<(chromeos)',
     'touchui%': '<(touchui)',
     'inside_chromium_build%': '<(inside_chromium_build)',
     'fastbuild%': '<(fastbuild)',
-    'linux_fpic%': '<(linux_fpic)',
     'python_ver%': '<(python_ver)',
     'armv7%': '<(armv7)',
     'arm_neon%': '<(arm_neon)',