[Mac] Rebuild app shims when they fail to dyload Chrome Framework.

chrome/common/mac/app_mode_common.h

Index: chrome/common/mac/app_mode_common.h
diff --git a/chrome/common/mac/app_mode_common.h b/chrome/common/mac/app_mode_common.h
index 4d686dafeeebb9c08b8cea6a1fb11dc7864d4206..670b883ee502fec5c4fc3c7f452967be289febda 100644
--- a/chrome/common/mac/app_mode_common.h
+++ b/chrome/common/mac/app_mode_common.h
@@ -41,6 +41,10 @@ extern const char kLaunchedByChromeProcessId[];
 // launch Chrome.
 extern const char kLaunchedForTest[];
 
+// Indicates to the shim that this Chrome has rebuilt it once already, i.e. if
+// it fails to launch again, don't trigger another rebuild.
+extern const char kLaunchedAfterRebuild[];
+
 // Path to an app shim bundle. Indicates to Chrome that this shim attempted to
 // launch but failed.
 extern const char kAppShimError[];
@@ -98,7 +102,7 @@ extern NSString* const kShortcutBrowserBundleIDPlaceholder;
 
 // Current major/minor version numbers of |ChromeAppModeInfo| (defined below).
 const unsigned kCurrentChromeAppModeInfoMajorVersion = 1;
-const unsigned kCurrentChromeAppModeInfoMinorVersion = 1;
+const unsigned kCurrentChromeAppModeInfoMinorVersion = 2;
 
 // The structure used to pass information from the app mode loader to the
 // (browser) framework. This is versioned using major and minor version numbers,