Web MIDI: MIDIAccessor platform implementation and Blink API

public/platform/Platform.h

Index: public/platform/Platform.h
diff --git a/public/platform/Platform.h b/public/platform/Platform.h
index 24e302e98c6da2be2de25cd84faeb603b09df805..5f974adb329fcc7d98a246383baedced0ea5bf3f 100644
--- a/public/platform/Platform.h
+++ b/public/platform/Platform.h
@@ -66,6 +66,8 @@ class WebGestureCurve;
 class WebGraphicsContext3DProvider;
 class WebHyphenator;
 class WebIDBFactory;
+class WebMIDIAccessor;
+class WebMIDIAccessorClient;
 class WebMediaStreamCenter;
 class WebMediaStreamCenterClient;
 class WebMessagePortChannel;
@@ -151,6 +153,11 @@ public:
     virtual WebAudioDevice* createAudioDevice(size_t bufferSize, unsigned numberOfChannels, double sampleRate, WebAudioDevice::RenderCallback*) { return 0; }
     virtual WebAudioDevice* createAudioDevice(size_t bufferSize, unsigned numberOfInputChannels, unsigned numberOfChannels, double sampleRate, WebAudioDevice::RenderCallback*) { return 0; }
 
+    // MIDI ----------------------------------------------------------------
+
+    // Creates a platform dependent WebMIDIAccessor. MIDIAccessor under platform
+    // creates and owns it.
+    virtual WebMIDIAccessor* createMIDIAccessor(WebMIDIAccessorClient*) { return 0; }
 

[abarth-chromium, 2013/06/19 17:08:59]

Please keep two blank lines between each section.

[Chris Rogers, 2013/06/19 19:43:31]

Done.

     // Blob ----------------------------------------------------------------