base: Add UnSetEnv function to EnvVarGetter API.

BUG=None
TEST=out/Debug/base_unittests --gtest_filter=EnvVarTest.UnSetEnvVar

Signed-off-by: Thiago Farina <tfarina@chromium.org>

Review URL: http://codereview.chromium.org/3043018

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@54418 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 7 insertions, 3 deletions

diff --git a/chrome/browser/shell_integration_unittest.cc b/chrome/browser/shell_integration_unittest.cc
index 0514781..dbaa290 100644
--- a/chrome/browser/shell_integration_unittest.cc
+++ b/chrome/browser/shell_integration_unittest.cc
@@ -32,8 +32,7 @@ namespace {
 // Provides mock environment variables values based on a stored map.
 class MockEnvVarGetter : public base::EnvVarGetter {
  public:
-  MockEnvVarGetter() {
-  }
+  MockEnvVarGetter() {}
 
   void Set(const std::string& name, const std::string& value) {
     variables_[name] = value;
@@ -49,7 +48,12 @@ class MockEnvVarGetter : public base::EnvVarGetter {
   }
 
   virtual bool SetEnv(const char* variable_name, const std::string& new_value) {
-    NOTIMPLEMENTED();
+    ADD_FAILURE();
+    return false;
+  }
+
+  virtual bool UnSetEnv(const char* variable_name) {
+    ADD_FAILURE();
     return false;
   }