Updates libjpeg-turbo to 1.1.90 (r677)

third_party/libjpeg_turbo/README.chromium

 Name: libjpeg-turbo
 URL: http://sourceforge.net/projects/libjpeg-turbo/
-Version: 1.0.1
+Version: 1.1.90
 License File: LICENSE.txt
+Security Critical: yes
 
 Description:
 This consists of three components:
-* A partial copy of libjpeg-turbo-1.0.1 with one small additional fix - r324 from
-  https://libjpeg-turbo.svn.sourceforge.net/svnroot/libjpeg-turbo/branches/1.0.x
+* A partial copy of libjpeg-turbo 1.1.90 (r677);
 * A build file (libjpeg.gyp), and;
 * Patched header files used by Chromium.
 
 This libjpeg-turbo can replace our libjpeg-6b without any modifications in the
 Chromium code.
 
 Same as our copy of libjpeg-6b, this libjpeg-turbo also added a new file
 jpeglibmangler.h and included it from jpeglib.h that changes the names of all
 externally visible functions to chromium_* so that we can avoid conflicts that
-arise when system libraries attempt to use our libjpeg. Also, We added the
-'private_extern' flags on Mac (or the 'hidden' flags on Linux) to all the
-global symbols in '.asm' files to prevent making them external ones.
+arise when system libraries attempt to use our libjpeg. Also, we applied the
+following changes which are not merged to upstream:
+* Added the 'private_extern' flags on Mac (or the 'hidden' flags on Linux) to
+  all the global symbols in '.asm' files to prevent making them external ones.
+* Supported motion-JPEG frames that do not have DHT markers.
+* Fixed valgrind errors.
 The 'google.patch' file represents our changes from the original
-libjpeg-turbo-1.0.1.
+libjpeg-turbo-1.1.90.