Adding linux support (#482)

experimental/desktop_photo_search/pubspec.lock

@@ -106,6 +106,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "7.1.0"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
   charcode:
     dependency: transitive
     description:
@@ -126,7 +133,7 @@ packages:
       name: cli_util
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.4"
+    version: "0.2.0"
   clock:
     dependency: transitive
     description:
@@ -147,7 +154,7 @@ packages:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.12"
+    version: "1.14.13"
   convert:
     dependency: transitive
     description:
@@ -161,7 +168,7 @@ packages:
       name: coverage
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.13.10"
+    version: "0.14.0"
   crypto:
     dependency: transitive
     description:
@@ -202,10 +209,10 @@ packages:
     description:
       path: "plugins/file_chooser"
       ref: HEAD
-      resolved-ref: b9c7e27ba16f86ff3390cfb0e460802e9980399a
+      resolved-ref: b0794faf2c000576515aee56ca6bb5bee64cece4
       url: "https://github.com/google/flutter-desktop-embedding.git"
     source: git
-    version: "0.1.0"
+    version: "0.2.0"
   fixnum:
     dependency: transitive
     description:
@@ -255,7 +262,7 @@ packages:
       name: grinder
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.8.4"
+    version: "0.8.5"
   html:
     dependency: transitive
     description:
@@ -304,7 +311,7 @@ packages:
       name: js
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.6.1+1"
+    version: "0.6.2"
   json_annotation:
     dependency: transitive
     description:
@@ -325,16 +332,16 @@ packages:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.6"
+    version: "0.12.8"
   menubar:
     dependency: "direct main"
     description:
       path: "plugins/menubar"
       ref: HEAD
-      resolved-ref: b9c7e27ba16f86ff3390cfb0e460802e9980399a
+      resolved-ref: b0794faf2c000576515aee56ca6bb5bee64cece4
       url: "https://github.com/google/flutter-desktop-embedding.git"
     source: git
-    version: "0.0.1"
+    version: "0.1.0"
   meta:
     dependency: "direct main"
     description:
@@ -349,13 +356,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.9.6+3"
-  multi_server_socket:
-    dependency: transitive
-    description:
-      name: multi_server_socket
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.2"
   nested:
     dependency: transitive
     description:
@@ -383,7 +383,7 @@ packages:
       name: node_preamble
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.4.10"
+    version: "1.4.12"
   package_config:
     dependency: transitive
     description:
@@ -432,7 +432,7 @@ packages:
       name: provider
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.1.2"
+    version: "4.1.3"
   pub_semver:
     dependency: transitive
     description:
@@ -460,7 +460,7 @@ packages:
       name: shelf
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.7.5"
+    version: "0.7.7"
   shelf_packages_handler:
     dependency: transitive
     description:
@@ -556,21 +556,21 @@ packages:
       name: test
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.6"
+    version: "1.15.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.16"
+    version: "0.2.17"
   test_core:
     dependency: transitive
     description:
       name: test_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.6"
+    version: "0.3.8"
   timing:
     dependency: transitive
     description:
@@ -591,7 +591,7 @@ packages:
       name: tuneup
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.6+2"
+    version: "0.3.7"
   typed_data:
     dependency: transitive
     description:
@@ -605,7 +605,7 @@ packages:
       name: url_launcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "5.4.10"
+    version: "5.4.11"
   url_launcher_macos:
     dependency: transitive
     description:
@@ -633,7 +633,7 @@ packages:
       name: uuid
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.4"
+    version: "2.1.0"
   vector_math:
     dependency: transitive
     description:
@@ -647,7 +647,7 @@ packages:
       name: vm_service
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.0.4"
+    version: "4.1.0"
   watcher:
     dependency: transitive
     description:
@@ -677,5 +677,5 @@ packages:
     source: hosted
     version: "2.2.1"
 sdks:
-  dart: ">=2.9.0-11.0.dev <3.0.0"
+  dart: ">=2.9.0-14.0.dev <3.0.0"
   flutter: ">=1.19.0-3.0.pre <2.0.0"