leveldatabase.gyp cleanup

Followup for some style issues identified in https://codereview.chromium.org/432083003/

* move windows source files into the main list
  (and filter *_win.{cc,h} on non-windows platforms for all targets)
* remove exclusions of files that don't exist (*_android.cc & *_portable.cc)
* exclude header files corresponding to excluded .cc files

BUG=381456

Review URL: https://codereview.chromium.org/433203002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@287374 0039d316-1c4b-4281-b951-d872f2087c98

third_party/leveldatabase/leveldatabase.gyp

@@ -39,6 +39,9 @@
       'src/include/',
     ],
     'conditions': [
+      ['OS!="win"', {
+        'sources/': [ ['exclude', '_win.(h|cc)$'], ],
+      }],
       ['use_snappy', {
         'defines': [
           'USE_SNAPPY=1',
@@ -63,12 +66,6 @@
             '../../third_party/snappy/snappy.gyp:snappy',
           ],
         }],
-        ['OS=="win"', {
-          'sources': [
-            'env_chromium_win.cc',
-            'env_chromium_win.h',
-          ],
-        }],
       ],
       'direct_dependent_settings': {
         'include_dirs': [
@@ -95,6 +92,8 @@
         'env_chromium.h',
         'env_chromium_stdio.cc',
         'env_chromium_stdio.h',
+        'env_chromium_win.cc',
+        'env_chromium_win.h',
         'env_idb.h',
         'port/port_chromium.cc',
         'port/port_chromium.h',
@@ -181,7 +180,7 @@
         'src/util/status.cc',
       ],
       'sources/': [
-        ['exclude', '_(android|example|portable|posix)\\.cc$'],
+        ['exclude', '_(example|posix)\\.(h|cc)$'],
       ],
     },
     {