[8u-dev] Request for approval: 8057788 [macosx] "Pinch to zoom" does not work since jdk7

[Sergey Bylokhov]

Hello,
This is a direct back port from jdk 9 to jdk8u-dev.

8057788: [macosx] "Pinch to zoom" does not work since jdk7
Bug: https://bugs.openjdk.java.net/browse/JDK-8057788
Webrev can be found at: http://cr.openjdk.java.net/~serb/denis/8057788/
jdk9 changeset: http://hg.openjdk.java.net/jdk9/client/jdk/rev/32c9def19d36
Review: 
http://mail.openjdk.java.net/pipermail/awt-dev/2014-December/008757.html
Reviewers: Sergey Bylokhov, Alexander Scherbatiy

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Best regards, Sergey.