Add WebP library to Chromium...

third_party/libwebp/libwebp.gyp

+# Copyright (c) 2010 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+{
+  'variables': {
+    'use_system_libwebp%': 0,
+  },
+  'conditions': [
+    ['use_system_libwebp==0', {
+      'targets': [
+        {
+          'target_name': 'libwebp',
+          'type': '<(library)',
+          'sources': [
+            'bits.c',
+            'frame.c',
+            'dsp.c',
+            'quant.c',
+            'tree.c',
+            'vp8.c',
+            'webp.c',
+            'yuv.c',
+          ],
+          'direct_dependent_settings': {
+            'include_dirs': [
+              '.', './webp',
+            ],
+          },
+          'conditions': [
+            ['OS!="win"', {
+              'product_name': 'webp',
+              'cflags': [
+                '-std=c99',
+              ],},
+            ],
+            ['OS=="win"', {
+              'msvs_settings': {
+                'VCCLCompilerTool': {
+                  'AdditionalOptions': ['/TP'],  # compile as C++ to get C99
+                },
+              },
+            }],
+          ],
+        },
+      ],
+    }, {
+      'targets': [
+        {
+          'target_name': 'libwebp',
+          'type': 'settings',
+          'direct_dependent_settings': {
+            'defines': [
+              'ENABLE_WEBP',
+            ],
+          },
+          'link_settings': {
+            'libraries': [
+              '-lwebp',
+            ],
+          },
+        }
+      ],
+    }],
+  ],
+}
+
+# Local Variables:
+# tab-width:2
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=2 shiftwidth=2: