Review URL: https://codereview.chromium.org/1378253002

Cr-Commit-Position: refs/heads/master@{#31060}

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1285183010

Cr-Commit-Position: refs/heads/master@{#30263}

Review URL: https://codereview.chromium.org/1221433021

Cr-Commit-Position: refs/heads/master@{#29604}

When compiling on a laptop I like to concatenate the small test files.
This makes a big difference to compile times. These changes make that
easier.

R=ulan@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1163803002

Cr-Commit-Position: refs/heads/master@{#28742}

This avoids both a mysterious boolean argument ("insert") and lets
non-mutating lookups skip passing an allocator (in one such case,
we were passing a scary-looking ZoneAllocationPolicy(NULL)!).

Review URL: https://codereview.chromium.org/1074943002

Cr-Commit-Position: refs/heads/master@{#27799}

Mechanical change.

This will break dependency between profiler-generator and heap-profiler-generator.
Later this will help us to reuse SourcePosition in cpu-profiler.

BUG=452067
LOG=n

Review URL: https://codereview.chromium.org/945873002

Cr-Commit-Position: refs/heads/master@{#26780}