First suggestion for camera platform interface

Author: mvanbeusekom

packages/camera/camera/example/pubspec.yaml

@@ -9,7 +9,7 @@ dependencies:
     sdk: flutter
   video_player: ^0.10.0
   integration_test:
-    path: ../../integration_test
+    path: ../../../integration_test
 
 dev_dependencies:
   flutter_test:

packages/camera/camera_platform_interface/CHANGELOG.md

@@ -0,0 +1,3 @@
+## 0.1.0
+
+- Initial open-source release

packages/camera/camera_platform_interface/LICENSE

@@ -0,0 +1,25 @@
+Copyright 2017 The Chromium Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google Inc. nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

packages/camera/camera_platform_interface/README.md

@@ -0,0 +1,26 @@
+# camera_platform_interface
+
+A common platform interface for the [`camera`][1] plugin.
+
+This interface allows platform-specific implementations of the `camera`
+plugin, as well as the plugin itself, to ensure they are supporting the
+same interface.
+
+# Usage
+
+To implement a new platform-specific implementation of `camera`, extend
+[`CameraPlatform`][2] with an implementation that performs the
+platform-specific behavior, and when you register your plugin, set the default
+`CameraPlatform` by calling
+`CameraPlatform.instance = MyPlatformCamera()`.
+
+# Note on breaking changes
+
+Strongly prefer non-breaking changes (such as adding a method to the interface)
+over breaking changes for this package.
+
+See https://flutter.dev/go/platform-interface-breaking-changes for a discussion
+on why a less-clean interface is preferable to a breaking change.
+
+[1]: ../camera
+[2]: lib/camera_platform_interface.dart