Mac: app mode loader (shim).

Define an interface using which Chrome can be loaded from a minimal loader.
Produce a binary for this loader (which can be put into a bundle).

BUG=13148
TEST=not yet

Review URL: http://codereview.chromium.org/2066004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@47576 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 14 insertions, 0 deletions

diff --git a/chrome/common/chrome_paths_mac.mm b/chrome/common/chrome_paths_mac.mm
index 21868cd..c7db483 100644
--- a/chrome/common/chrome_paths_mac.mm
+++ b/chrome/common/chrome_paths_mac.mm
@@ -12,6 +12,10 @@
 #include "base/path_service.h"
 #include "chrome/common/chrome_constants.h"
 
+namespace {
+const FilePath* g_override_versioned_directory = NULL;
+}  // namespace
+
 namespace chrome {
 
 bool GetDefaultUserDataDirectory(FilePath* result) {
@@ -53,6 +57,9 @@ bool GetUserDesktop(FilePath* result) {
 }
 
 FilePath GetVersionedDirectory() {
+  if (g_override_versioned_directory)
+    return *g_override_versioned_directory;
+
   // Start out with the path to the running executable.
   FilePath path;
   PathService::Get(base::FILE_EXE, &path);
@@ -75,6 +82,13 @@ FilePath GetVersionedDirectory() {
   return path;
 }
 
+void SetOverrideVersionedDirectory(const FilePath* path) {
+  if (path != g_override_versioned_directory) {
+    delete g_override_versioned_directory;
+    g_override_versioned_directory = path;
+  }
+}
+
 FilePath GetFrameworkBundlePath() {
   // It's tempting to use +[NSBundle bundleWithIdentifier:], but it's really
   // slow (about 30ms on 10.5 and 10.6), despite Apple's documentation stating