Fixes the following security problems:
- CVE-2016-5147: Universal XSS in Blink
- CVE-2016-5148: Universal XSS in Blink
- CVE-2016-5149: Script injection in extensions
- CVE-2016-5150: Use after free in Blink
- CVE-2016-5151: Use after free in PDFium
- CVE-2016-5152: Heap overflow in PDFium
- CVE-2016-5153: Use after destruction in Blink
- CVE-2016-5154: Heap overflow in PDFium
- CVE-2016-5155: Address bar spoofing
- CVE-2016-5156: Use after free in event bindings
- CVE-2016-5157: Heap overflow in PDFium
- CVE-2016-5158: Heap overflow in PDFium
- CVE-2016-5159: Heap overflow in PDFium
- CVE-2016-5160: Extensions web accessible resources bypass
- CVE-2016-5161: Type confusion in Blink.
- CVE-2016-5162: Extensions web accessible resources bypass
- CVE-2016-5163: Address bar spoofing
- CVE-2016-5164: Universal XSS using DevTools
- CVE-2016-5165: Script injection in DevTools
- CVE-2016-5166: SMB Relay Attack via Save Page As
- CVE-2016-5167: Various fixes from internal audits, fuzzing and other initiatives
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