Adding a simple class for dumping the contents of a cache. Use this new class in dump_cache.

net/net.gyp

Index: net/net.gyp
diff --git a/net/net.gyp b/net/net.gyp
index 795f6278c7eee18e3395d3a719f40cec17a85d5c..572537268e7eb9d42f779f148aee71fa352a5ccc 100644
--- a/net/net.gyp
+++ b/net/net.gyp
@@ -1942,6 +1942,30 @@
         'server/web_socket.h',
       ],
     },
+    {
+      'target_name': 'dump_cache',
+      'type': 'executable',
+      'dependencies': [
+        '../base/base.gyp:base',
+        'net',
+        'net_test_support',
+      ],
+      'sources': [
+        'tools/dump_cache/cache_dumper.cc',
+        'tools/dump_cache/cache_dumper.h',
+        'tools/dump_cache/dump_cache.cc',
+        'tools/dump_cache/dump_files.cc',
+        'tools/dump_cache/dump_files.h',
+        'tools/dump_cache/simple_cache_dumper.cc',
+        'tools/dump_cache/simple_cache_dumper.h',
+        'tools/dump_cache/upgrade_win.cc',
+        'tools/dump_cache/upgrade_win.h',
+        'tools/dump_cache/url_to_filename_encoder.cc',
+        'tools/dump_cache/url_to_filename_encoder.h',
+        'tools/dump_cache/url_utilities.h',
+        'tools/dump_cache/url_utilities.cc',
+      ],
+    },
   ],
   'conditions': [
     ['use_v8_in_net == 1', {
@@ -2306,31 +2330,6 @@
         },
       ],
     }],
-    ['OS=="win"', {
-      'targets': [
-        {
-          # TODO(port): dump_cache is still Windows-specific.
-          'target_name': 'dump_cache',
-          'type': 'executable',
-          'dependencies': [
-            '../base/base.gyp:base',
-            'net',
-            'net_test_support',
-          ],
-          'sources': [
-            'tools/dump_cache/cache_dumper.cc',
-            'tools/dump_cache/cache_dumper.h',
-            'tools/dump_cache/dump_cache.cc',
-            'tools/dump_cache/dump_files.cc',
-            'tools/dump_cache/upgrade.cc',
-            'tools/dump_cache/url_to_filename_encoder.cc',
-            'tools/dump_cache/url_to_filename_encoder.h',
-            'tools/dump_cache/url_utilities.h',
-            'tools/dump_cache/url_utilities.cc',
-          ],
-        },
-      ],
-    }],
     ['test_isolation_mode != "noop"', {
       'targets': [
         {