base: Convert scoped_arrays to the new scoped_ptr style.

base/environment.cc

Index: base/environment.cc
diff --git a/base/environment.cc b/base/environment.cc
index 8c61591776ee2559f6ae16ff34da55393a4de93f..6849fef88cb2484c76c510e5cf7ecdd2d054891f 100644
--- a/base/environment.cc
+++ b/base/environment.cc
@@ -66,7 +66,7 @@ class EnvironmentImpl : public base::Environment {
     if (value_length == 0)
       return false;
     if (result) {
-      scoped_array<wchar_t> value(new wchar_t[value_length]);
+      scoped_ptr<wchar_t[]> value(new wchar_t[value_length]);
       ::GetEnvironmentVariable(UTF8ToWide(variable_name).c_str(), value.get(),
                                value_length);
       *result = WideToUTF8(value.get());