[MIPS] Fix library order and includes for breakpad test

Add missing header location for linux_dumper_unittest_helper for Android. It
is required to correctly locate sgidefs.h.
In addition, this change removes duplicate '-ldl', since the order of listed
libraries is important for GNU ld (still used for some architectures such as
MIPS).

BUG= fail to build breakpad tests for MIPS
TEST= build breakpad tests MIPS-Android

Review URL: https://codereview.chromium.org/26006002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227052 0039d316-1c4b-4281-b951-d872f2087c98

breakpad/breakpad.gyp

@@ -504,14 +504,18 @@
                 'src/common/android/breakpad_getcontext.S',
               ],
             }],
+            ['OS!="android"', {
+              'link_settings': {
+                'libraries': [
+                  # In case of Android, '-ldl' is added in common.gypi, since it
+                  # is needed for stlport_static. For LD, the order of libraries
+                  # is important, and thus we skip to add it here.
+                  '-ldl',
+                ],
+              },
+            }],
           ],
 
-          'link_settings': {
-            'libraries': [
-              '-ldl',
-            ],
-          },
-
           'include_dirs': [
             'src',
             'src/client',
@@ -621,6 +625,13 @@
             'src',
             '..',
           ],
+          'conditions': [
+            ['target_arch=="mipsel" and OS=="android"', {
+              'include_dirs': [
+                'src/common/android/include',
+              ],
+            }],
+          ],
         },
         {
           'target_name': 'generate_test_dump',