Dynamic policy refresh support for the Mac.

Adapt the file watching code we already had for ConfigDirPolicyProvider to support a loader delegate, make the old code use it and change the Mac policy provider to watch for changes to the plist file in /Library/Managed Preferences/<username>.

BUG=52040
TEST=unit tests

Review URL: http://codereview.chromium.org/4062002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@64415 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 26 insertions, 2 deletions

diff --git a/base/mac_util.h b/base/mac_util.h
index e590d30..182fcc8 100644
--- a/base/mac_util.h
+++ b/base/mac_util.h
@@ -24,8 +24,10 @@ class NSWindow;
 // Adapted from NSPathUtilities.h and NSObjCRuntime.h.
 #if __LP64__ || NS_BUILD_32_LIKE_64
 typedef unsigned long NSSearchPathDirectory;
+typedef unsigned long NSSearchPathDomainMask;
 #else
 typedef unsigned int NSSearchPathDirectory;
+typedef unsigned int NSSearchPathDomainMask;
 #endif
 
 namespace mac_util {
@@ -74,11 +76,23 @@ OSType CreatorCodeForCFBundleRef(CFBundleRef bundle);
 // app bundle's creator code anyway.
 OSType CreatorCodeForApplication();
 
+// Searches for directories for the given key in only the given |domain_mask|.
+// If found, fills result (which must always be non-NULL) with the
+// first found directory and returns true.  Otherwise, returns false.
+bool GetSearchPathDirectory(NSSearchPathDirectory directory,
+                            NSSearchPathDomainMask domain_mask,
+                            FilePath* result);
+
 // Searches for directories for the given key in only the user domain.
 // If found, fills result (which must always be non-NULL) with the
 // first found directory and returns true.  Otherwise, returns false.
 bool GetUserDirectory(NSSearchPathDirectory directory, FilePath* result);
 
+// Searches for directories for the given key in only the local domain.
+// If found, fills result (which must always be non-NULL) with the
+// first found directory and returns true.  Otherwise, returns false.
+bool GetLocalDirectory(NSSearchPathDirectory directory, FilePath* result);
+
 // Returns the ~/Library directory.
 FilePath GetUserLibraryPath();
 
diff --git a/base/mac_util.mm b/base/mac_util.mm
index f4e988a..4e6b105 100644
--- a/base/mac_util.mm
+++ b/base/mac_util.mm
@@ -219,10 +219,12 @@ OSType CreatorCodeForApplication() {
   return CreatorCodeForCFBundleRef(bundle);
 }
 
-bool GetUserDirectory(NSSearchPathDirectory directory, FilePath* result) {
+bool GetSearchPathDirectory(NSSearchPathDirectory directory,
+                            NSSearchPathDomainMask domain_mask,
+                            FilePath* result) {
   DCHECK(result);
   NSArray* dirs =
-      NSSearchPathForDirectoriesInDomains(directory, NSUserDomainMask, YES);
+      NSSearchPathForDirectoriesInDomains(directory, domain_mask, YES);
   if ([dirs count] < 1) {
     return false;
   }
@@ -231,6 +233,14 @@ bool GetUserDirectory(NSSearchPathDirectory directory, FilePath* result) {
   return true;
 }
 
+bool GetLocalDirectory(NSSearchPathDirectory directory, FilePath* result) {
+  return GetSearchPathDirectory(directory, NSLocalDomainMask, result);
+}
+
+bool GetUserDirectory(NSSearchPathDirectory directory, FilePath* result) {
+  return GetSearchPathDirectory(directory, NSUserDomainMask, result);
+}
+
 FilePath GetUserLibraryPath() {
   FilePath user_library_path;
   if (!GetUserDirectory(NSLibraryDirectory, &user_library_path)) {