Implemented GetWindowSnapshot on RenderViewImpl

ui/snapshot/snapshot.gyp

Index: ui/snapshot/snapshot.gyp
diff --git a/ui/snapshot/snapshot.gyp b/ui/snapshot/snapshot.gyp
new file mode 100644
index 0000000000000000000000000000000000000000..40744bfc768359129ecd467b2a9810dace3d3aeb
--- /dev/null
+++ b/ui/snapshot/snapshot.gyp
@@ -0,0 +1,65 @@
+# Copyright (c) 2012 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': {
+    'chromium_code': 1,
+  },
+  'targets': [
+    {
+      'target_name': 'snapshot',
+      'type': '<(component)',
+      'dependencies': [
+        '../../skia/skia.gyp:skia',
+        '../../base/base.gyp:base',
+        '../ui.gyp:ui',
+      ],
+      'defines': [
+        'SNAPSHOT_IMPLEMENTATION',
+      ],
+      'sources': [
+        'snapshot.h',
+        'snapshot_android.cc',
+        'snapshot_aura.cc',
+        'snapshot_export.h',
+        'snapshot_gtk.cc',
+        'snapshot_ios.mm',
+        'snapshot_mac.mm',
+        'snapshot_win.cc',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'conditions': [
+        ['use_aura==1', {
+          'dependencies': [
+            '../aura/aura.gyp:aura',
+            '../compositor/compositor.gyp:compositor',
+          ],
+        }],
+        ['use_aura==1 and OS=="win"', {
+          'sources/': [
+            ['exclude', 'snapshot_win.cc'],
+          ],
+        }],
+      ],
+    },
+    {
+      'target_name': 'snapshot_unittests',
+      'type': '<(gtest_target_type)',
+      'dependencies': [
+        '../../skia/skia.gyp:skia',
+        '../../base/base.gyp:base',
+        '../../testing/gtest.gyp:gtest',
+        '../../testing/gmock.gyp:gmock',
+        '../../testing/gtest.gyp:gtest',
+        '../ui.gyp:ui',
+        'snapshot'
+      ],
+      'sources': [
+        'snapshot_mac_unittest.mm',
+      ]
+    },
+  ],
+}