base: rename Environment::SetEnv to Environment::SetVar.

chrome/plugin/plugin_main_mac.mm

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/chrome_application_mac.h"
 #include "base/environment.h"
 #include "base/scoped_ptr.h"
 #include "base/string_util.h"
 #include "chrome/common/plugin_carbon_interpose_constants_mac.h"
 #include "chrome/plugin/plugin_interpose_util_mac.h"
@@ skipping 18 matching lines @@
       strlen(plugin_interpose_strings::kInterposeLibraryPath);
 
   if (suffix_offset == 0 &&
       strcmp(interpose_list.c_str(),
              plugin_interpose_strings::kInterposeLibraryPath) == 0) {
     env->UnSetVar(plugin_interpose_strings::kDYLDInsertLibrariesKey);
   } else if (suffix_offset > 0 && interpose_list[suffix_offset - 1] == ':' &&
              strcmp(interpose_list.c_str() + suffix_offset,
                     plugin_interpose_strings::kInterposeLibraryPath) == 0) {
     std::string trimmed_list = interpose_list.substr(0, suffix_offset - 1);
-    env->SetEnv(plugin_interpose_strings::kDYLDInsertLibrariesKey,
+    env->SetVar(plugin_interpose_strings::kDYLDInsertLibrariesKey,
                 trimmed_list.c_str());
   } else {
     NOTREACHED() << "Missing Carbon interposing library";
   }
 }
 #endif
 
 void InitializeChromeApplication() {
   [CrApplication sharedApplication];
 
   mac_plugin_interposing::SetUpCocoaInterposing();
 }