diff --git a/gcl.py b/gcl.py
index 90ad65a1d..5d1479378 100755
--- a/gcl.py
+++ b/gcl.py
@@ -141,7 +141,7 @@ def GetCachedFile(filename, max_age=60*60*24*3, use_root=False):
       # fetch it each time.
       gclient_utils.FileWrite(cached_file, content)
     else:
-      content = ReadFile(cached_file)
+      content = gclient_utils.FileRead(cached_file, 'r')
     # Keep the content cached in memory.
     FILES_CACHE[filename] = content
   return FILES_CACHE[filename]
@@ -205,14 +205,6 @@ def RunShell(command, print_output=False):
   return RunShellWithReturnCode(command, print_output)[0]
 
 
-def ReadFile(filename, flags='r'):
-  """Returns the contents of a file."""
-  f = open(filename, flags)
-  result = f.read()
-  f.close()
-  return result
-
-
 def FilterFlag(args, flag):
   """Returns True if the flag is present in args list.
 
@@ -416,7 +408,8 @@ class ChangeInfo(object):
         ErrorExit("Changelist " + changename + " not found.")
       return ChangeInfo(changename, 0, 0, '', None, local_root,
                         needs_upload=False)
-    split_data = ReadFile(info_file).split(ChangeInfo._SEPARATOR, 2)
+    split_data = gclient_utils.FileRead(info_file, 'r').split(
+        ChangeInfo._SEPARATOR, 2)
     if len(split_data) != 3:
       ErrorExit("Changelist file %s is corrupt" % info_file)
     items = split_data[0].split(', ')
@@ -1012,7 +1005,7 @@ def Change(change_info, args):
   if not silent:
     os.system(GetEditor() + " " + filename)
 
-  result = ReadFile(filename)
+  result = gclient_utils.FileRead(filename, 'r')
   os.remove(filename)
 
   if not result:
diff --git a/scm.py b/scm.py
index 58f26c6a9..757935d75 100644
--- a/scm.py
+++ b/scm.py
@@ -416,11 +416,7 @@ class SVN(object):
 
     # We know the diff will be incorrectly formatted. Fix it.
     if SVN.IsMoved(filename):
-      # The file is "new" in the patch sense. Generate a homebrew diff.
-      # We can't use ReadFile() since it's not using binary mode.
-      file_handle = open(filename, 'rb')
-      file_content = file_handle.read()
-      file_handle.close()
+      file_content = gclient_utils.FileRead(filename, 'rb')
       # Prepend '+' to every lines.
       file_content = ['+' + i for i in file_content.splitlines(True)]
       nb_lines = len(file_content)
diff --git a/tests/gcl_unittest.py b/tests/gcl_unittest.py
index 6c37bd472..e59831206 100755
--- a/tests/gcl_unittest.py
+++ b/tests/gcl_unittest.py
@@ -19,7 +19,7 @@ class GclTestsBase(SuperMoxTestBase):
     self.mox.StubOutWithMock(gcl.SVN, 'CaptureInfo')
     self.mox.StubOutWithMock(gcl, 'tempfile')
     self.mox.StubOutWithMock(gcl.upload, 'RealMain')
-    self.mox.StubOutWithMock(gcl, 'ReadFile')
+    self.mox.StubOutWithMock(gcl.gclient_utils, 'FileRead')
     self.mox.StubOutWithMock(gcl.gclient_utils, 'FileWrite')
 
 
@@ -38,7 +38,7 @@ class GclUnittest(GclTestsBase):
         'GetModifiedFiles', 'GetRepositoryRoot', 'Help', 'Lint',
         'LoadChangelistInfoForMultiple', 'MISSING_TEST_MSG', 'Opened',
         'OptionallyDoPresubmitChecks', 'PresubmitCL', 'REPOSITORY_ROOT',
-        'ReadFile', 'RunShell', 'RunShellWithReturnCode', 'SVN',
+        'RunShell', 'RunShellWithReturnCode', 'SVN',
         'SendToRietveld', 'TryChange', 'UnknownFiles', 'UploadCL', 'Warn',
         'breakpad', 'gclient_utils', 'getpass', 'main', 'os', 'random', 're',
         'shutil', 'string', 'subprocess', 'sys', 'tempfile', 'upload',
@@ -185,7 +185,7 @@ class ChangeInfoUnittest(GclTestsBase):
     description = ["This is some description.", "force an extra separator."]
     gcl.GetChangelistInfoFile('bleh').AndReturn('bleeeh')
     gcl.os.path.exists('bleeeh').AndReturn(True)
-    gcl.ReadFile('bleeeh').AndReturn(
+    gcl.gclient_utils.FileRead('bleeeh', 'r').AndReturn(
       gcl.ChangeInfo._SEPARATOR.join(["42, 53", "G      b.cc"] + description))
     self.mox.ReplayAll()
 
@@ -200,7 +200,7 @@ class ChangeInfoUnittest(GclTestsBase):
   def testLoadEmpty(self):
     gcl.GetChangelistInfoFile('bleh').AndReturn('bleeeh')
     gcl.os.path.exists('bleeeh').AndReturn(True)
-    gcl.ReadFile('bleeeh').AndReturn(
+    gcl.gclient_utils.FileRead('bleeeh', 'r').AndReturn(
         gcl.ChangeInfo._SEPARATOR.join(["", "", ""]))
     self.mox.ReplayAll()
 
diff --git a/tests/presubmit_unittest.py b/tests/presubmit_unittest.py
index f7ecbdb34..c11283e37 100755
--- a/tests/presubmit_unittest.py
+++ b/tests/presubmit_unittest.py
@@ -49,9 +49,8 @@ def GetPreferredTrySlaves():
     presubmit.os.chdir = MockChdir
     self.mox.StubOutWithMock(presubmit.scm.SVN, 'CaptureInfo')
     self.mox.StubOutWithMock(presubmit.scm.SVN, 'GetFileProperty')
-    # TODO(maruel): Err, small duplication of code here.
-    self.mox.StubOutWithMock(presubmit.gcl, 'ReadFile')
     self.mox.StubOutWithMock(presubmit.gclient_utils, 'FileRead')
+    self.mox.StubOutWithMock(presubmit.gclient_utils, 'FileWrite')
 
 
 class PresubmitUnittest(PresubmitTestsBase):
diff --git a/trychange.py b/trychange.py
index 51f176a67..3febb1273 100755
--- a/trychange.py
+++ b/trychange.py
@@ -520,7 +520,7 @@ def TryChange(argv,
     if options.url:
       options.diff = urllib.urlopen(options.url).read()
     elif options.diff:
-      options.diff = gcl.ReadFile(options.diff)
+      options.diff = gcl.gclient_utils.FileRead(options.diff, 'rb')
     # Process the VCS in any case at least to retrieve the email address.
     try:
       options.scm = GuessVCS(options)