diff --git a/src/third_party/strongtalk/LICENSE b/src/third_party/strongtalk/LICENSE
new file mode 100644
index 0000000000..7473a7b2b5
--- /dev/null
+++ b/src/third_party/strongtalk/LICENSE
@@ -0,0 +1,29 @@
+Copyright (c) 1994-2006 Sun Microsystems Inc.
+All Rights Reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+- Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+
+- Redistribution in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer in the
+  documentation and/or other materials provided with the distribution.
+
+- Neither the name of Sun Microsystems or the names of contributors may
+  be used to endorse or promote products derived from this software without
+  specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/src/third_party/strongtalk/README.chromium b/src/third_party/strongtalk/README.chromium
new file mode 100644
index 0000000000..ba2b789f38
--- /dev/null
+++ b/src/third_party/strongtalk/README.chromium
@@ -0,0 +1,18 @@
+Name: Strongtalk
+URL: http://www.strongtalk.org/
+
+Code from the Strongtalk assembler is used with modification in the following
+files:
+
+src/assembler.h
+src/assembler.cc
+src/arm/assembler-arm.cc
+src/arm/assembler-arm.h
+src/arm/assembler-arm-inl.h
+src/ia32/assembler-ia32.cc
+src/ia32/assembler-ia32.h
+src/ia32/assembler-ia32-inl.h
+src/mips/assembler-mips.cc
+src/mips/assembler-mips.h
+src/mips/assembler-mips-inl.h
+src/x64/assembler-x64.h