Copy the PGO runtime library to the release directory (take 2)

This is a reland of https://codereview.chromium.org/402993002/ with an additional check to make sure that the DLLs exist before trying to copy them.

BUG=395183

Review URL: https://codereview.chromium.org/405983003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@284550 0039d316-1c4b-4281-b951-d872f2087c98

build/vs_toolchain.py

@@ -71,6 +71,18 @@ def CopyVsRuntimeDlls(output_dir, runtime_dirs):
   """
   assert sys.platform.startswith(('win32', 'cygwin'))
 
+  def copy_runtime_impl(target, source):
+    """Copy |source| to |target| if it doesn't already exist or if it need to be
+    updated.
+    """
+    if (os.path.isdir(os.path.dirname(target)) and
+        (not os.path.isfile(target) or
+          os.stat(target).st_mtime != os.stat(source).st_mtime)):
+      print 'Copying %s to %s...' % (source, target)
+      if os.path.exists(target):
+        os.unlink(target)
+      shutil.copy2(source, target)
+
   def copy_runtime(target_dir, source_dir, dll_pattern):
     """Copy both the msvcr and msvcp runtime DLLs, only if the target doesn't
     exist, but the target directory does exist."""
@@ -78,15 +90,7 @@ def CopyVsRuntimeDlls(output_dir, runtime_dirs):
       dll = dll_pattern % which
       target = os.path.join(target_dir, dll)
       source = os.path.join(source_dir, dll)
-      # If gyp generated to that output dir, and the runtime isn't already
-      # there, then copy it over.
-      if (os.path.isdir(target_dir) and
-          (not os.path.isfile(target) or
-            os.stat(target).st_mtime != os.stat(source).st_mtime)):
-        print 'Copying %s to %s...' % (source, target)
-        if os.path.exists(target):
-          os.unlink(target)
-        shutil.copy2(source, target)
+      copy_runtime_impl(target, source)
 
   x86, x64 = runtime_dirs
   out_debug = os.path.join(output_dir, 'Debug')
@@ -107,6 +111,20 @@ def CopyVsRuntimeDlls(output_dir, runtime_dirs):
   copy_runtime(out_debug_nacl64,   x64, 'msvc%s120d.dll')
   copy_runtime(out_release_nacl64, x64, 'msvc%s120.dll')
 
+  # Copy the PGO runtime library to the release directories.
+  if os.environ.get('GYP_MSVS_OVERRIDE_PATH'):
+    pgo_x86_runtime_dir = os.path.join(os.environ.get('GYP_MSVS_OVERRIDE_PATH'),
+                                       'VC', 'bin')
+    pgo_x64_runtime_dir = os.path.join(pgo_x86_runtime_dir, 'amd64')
+    pgo_runtime_dll = 'pgort120.dll'
+    source_x86 = os.path.join(pgo_x86_runtime_dir, pgo_runtime_dll)
+    if os.path.exists(source_x86):
+      copy_runtime_impl(os.path.join(out_release, pgo_runtime_dll), source_x86)
+    source_x64 = os.path.join(pgo_x64_runtime_dir, pgo_runtime_dll)
+    if os.path.exists(source_x64):
+      copy_runtime_impl(os.path.join(out_release_x64, pgo_runtime_dll),
+                        source_x64)
+
 
 def _GetDesiredVsToolchainHashes():
   """Load a list of SHA1s corresponding to the toolchains that we want installed