Remove all unused include paths from core/DEPS.

Review URL: https://codereview.chromium.org/255363003

git-svn-id: svn://svn.chromium.org/blink/trunk@173006 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/core/DEPS

 include_rules = [
     "+bindings",
     "+core",
-    "+heap",
-    "+mozilla",
     "+platform",
     "+public/platform",
-    "+sys",
 ]

third_party/WebKit/Source/platform/audio/AudioSourceProviderClient.h

@@ -30,8 +30,8 @@ namespace WebCore {
 class AudioSourceProviderClient {
 public:
     virtual void setFormat(size_t numberOfChannels, float sampleRate) = 0;
-    virtual void lock() { };
-    virtual void unlock() { };
+    virtual void lock() { }
+    virtual void unlock() { }
 protected:
     virtual ~AudioSourceProviderClient() { }
 };