Minimal Changes to run tests on iOS

experimental/iOSSampleApp/Shared/skia_ios.mm

Index: experimental/iOSSampleApp/Shared/skia_ios.mm
diff --git a/experimental/iOSSampleApp/Shared/skia_ios.mm b/experimental/iOSSampleApp/Shared/skia_ios.mm
index 45675fa61a0b4ef817997c899b682c32f2443784..2b793483e68e2085391f59440af0e713edab41ef 100644
--- a/experimental/iOSSampleApp/Shared/skia_ios.mm
+++ b/experimental/iOSSampleApp/Shared/skia_ios.mm
@@ -5,14 +5,24 @@ int main(int argc, char *argv[]) {
     signal(SIGPIPE, SIG_IGN);
     NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
     application_init();
+
     // Identify the documents directory
     NSArray *dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
     NSString *docsDir = [dirPaths objectAtIndex:0];
-    const char *d = [docsDir UTF8String];
-    IOS_launch_type launchType = set_cmd_line_args(argc, argv, d);
-    int retVal = launchType == kApplication__iOSLaunchType
-            ? UIApplicationMain(argc, argv, nil, nil) : (int) launchType;
+    NSString *resourceDir = [docsDir stringByAppendingString:@"/resources"];
+    const char *d = [resourceDir UTF8String];
+
+    // change to the dcouments directory. To allow the 'writePath' flag to use relative paths. 
+    NSFileManager *filemgr = [NSFileManager defaultManager];
+    int retVal = 99; 
+    if ([filemgr changeCurrentDirectoryPath: docsDir] == YES)
+    {
+        IOS_launch_type launchType = set_cmd_line_args(argc, argv, d);
+        retVal = launchType == kApplication__iOSLaunchType
+                ? UIApplicationMain(argc, argv, nil, nil) : (int) launchType;
+    }
     application_term();
+    [filemgr release];
     [pool release];
     return retVal;
 }