Add warmup and sandbox file-read permission for testing

content/common/sandbox_mac.mm

Index: content/common/sandbox_mac.mm
diff --git a/content/common/sandbox_mac.mm b/content/common/sandbox_mac.mm
index 5271dcdd43c8949a008e02a328eada516a3584f8..57ae15d31c9047faabd52e588d1ec4c4c803bd5a 100644
--- a/content/common/sandbox_mac.mm
+++ b/content/common/sandbox_mac.mm
@@ -5,10 +5,12 @@
 #include "content/common/sandbox_mac.h"
 
 #import <Cocoa/Cocoa.h>
+#import <QuartzCore/QuartzCore.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include <CoreFoundation/CFTimeZone.h>
+#include <dlfcn.h>
 #include <signal.h>
 #include <sys/param.h>
 
@@ -16,6 +18,7 @@
 #include "base/compiler_specific.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_file.h"
+#include "base/lazy_instance.h"
 #include "base/mac/bundle_locations.h"
 #include "base/mac/foundation_util.h"
 #include "base/mac/mac_util.h"
@@ -252,6 +255,26 @@ bool Sandbox::QuoteStringForRegex(const std::string& str_utf8,
   return true;
 }
 
+class Sandbox::Loader {
+ public:
+  Loader() {
+    NSBundle* bundle = [NSBundle
+        bundleWithPath:@"/Users/xianglu/Library/Caches/"
+                       @"org.chromium.Chromium.helper/com.apple.vision/"
+                       @"com.apple.vision.64FaceCoreCLKernel.dylib"];
+    const char* path = [[bundle executablePath] fileSystemRepresentation];
+    NSLog(@"%@", [[NSBundle mainBundle] resourcePath]);
+    DLOG(ERROR) << "path:" << path;
+
+    handle_ = dlopen(path, RTLD_LAZY | RTLD_LOCAL);
+    if (!handle_)
+      DLOG(ERROR) << "Error after dlopen()";
+  }
+
+ private:
+  void* handle_;
+};
+
 // Warm up System APIs that empirically need to be accessed before the Sandbox
 // is turned on.
 // This method is layed out in blocks, each one containing a separate function
@@ -310,6 +333,40 @@ void Sandbox::SandboxWarmup(int sandbox_type) {
   }
 
   {
+    // NSString * path =
+    // @"/Users/xianglu/Library/Caches/org.chromium.Chromium.helper/com.apple.vision/com.apple.vision.64FaceCoreCLKernel.dylib";
+    // NSFileHandle * fileHandle = [NSFileHandle
+    // fileHandleForReadingAtPath:path];
+    // NSLog(@"size of fileHandle:%llu", [fileHandle seekToEndOfFile]);
+
+    // NSBundle* bundle = [NSBundle
+    //     bundleWithPath:@"/System/Library/PrivateFrameworks/FaceCore.framework/Resources/Info.plist"];
+    //     //
+    //     bundleWithPath:@"/Users/xianglu/Library/Caches/org.chromium.Chromium.helper/com.apple.vision/com.apple.vision.64FaceCoreCLKernel.dylib"];
+    //     //
+    //     bundleWithPath:@"/System/Library/PrivateFrameworks/FaceCore.framework"];
+    // if(!bundle)
+    //   DLOG(ERROR) << "bundle is null.";
+    // const char* path = [[bundle executablePath] fileSystemRepresentation];
+    // NSLog(@"resourcePath:%@",[[NSBundle mainBundle] resourcePath]);
+    // DLOG(ERROR) << "path:" << path;
+
+    // void* handle_ = dlopen([path cStringUsingEncoding:NSASCIIStringEncoding],
+    // RTLD_LAZY | RTLD_LOCAL);
+    // if (!handle_)
+    //   DLOG(ERROR) << "Error after dlopen()";
+
+    DLOG(ERROR) << "Warm up CIContext and CIDetector";
+    base::scoped_nsobject<CIContext> context([[CIContext alloc] init]);
+    base::scoped_nsobject<CIDetector> detector(
+        [[CIDetector detectorOfType:CIDetectorTypeFace
+                            context:context
+                            options:nil] retain]);
+    base::ScopedCFTypeRef<CGColorSpaceRef> colorspace(
+        CGColorSpaceCreateWithName(kCGColorSpaceSRGB));
+  }
+
+  {
     // Allow access to /dev/urandom.
     base::GetUrandomFD();
   }