Upstream Chrome on iOS source code [1/11].

ios/chrome/app/chrome_exe_main.mm

+// Copyright 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import <UIKit/UIKit.h>
+
+#include "base/at_exit.h"
+#include "base/debug/crash_logging.h"
+#include "components/crash/core/common/crash_keys.h"
+#include "ios/chrome/app/startup/ios_chrome_main.h"
+#include "ios/chrome/browser/crash_report/breakpad_helper.h"
+#include "ios/chrome/browser/crash_report/crash_keys.h"
+#include "ios/chrome/common/channel_info.h"
+
+namespace {
+
+NSString* const kUIApplicationDelegateInfoKey = @"UIApplicationDelegate";
+
+void StartCrashController() {
+  std::string channel_string = GetChannelString();
+
+  RegisterChromeIOSCrashKeys();
+  base::debug::SetCrashKeyValue(crash_keys::kChannel, channel_string);
+  breakpad_helper::Start(channel_string);
+}
+
+}  // namespace
+
+int main(int argc, char* argv[]) {
+  IOSChromeMain::InitStartTime();
+  NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
+
+  NSUserDefaults* standardDefaults = [NSUserDefaults standardUserDefaults];
+
+  // Set NSUserDefaults keys to force pseudo-RTL if needed.
+  if ([standardDefaults boolForKey:@"EnablePseudoRTL"]) {
+    NSDictionary* pseudoDict = [NSDictionary
+        dictionaryWithObjectsAndKeys:@"YES", @"AppleTextDirection", @"YES",
+                                     @"NSForceRightToLeftWritingDirection",
+                                     nil];
+    [standardDefaults registerDefaults:pseudoDict];
+  }
+
+  // Create this here since it's needed to start the crash handler.
+  base::AtExitManager at_exit;
+
+  // The Crash Controller is started here even if the user opted out since we
+  // don't have yet preferences. Later on it is stopped if the user opted out.
+  // In any case reports are not sent if the user opted out.
+  StartCrashController();
+
+  // Always ignore SIGPIPE.  We check the return value of write().
+  CHECK_NE(SIG_ERR, signal(SIGPIPE, SIG_IGN));
+
+  // Purging the pool to prevent autorelease objects created by the previous
+  // calls to live forever.
+  [pool release];
+  pool = [[NSAutoreleasePool alloc] init];
+
+  // Part of code that requires us to specify which UIApplication delegate class
+  // to use by adding "UIApplicationDelegate" key to Info.plist file.
+  NSString* delegateClassName = [[NSBundle mainBundle]
+      objectForInfoDictionaryKey:kUIApplicationDelegateInfoKey];
+  CHECK(delegateClassName);
+
+  int retVal = UIApplicationMain(argc, argv, nil, delegateClassName);
+  [pool release];
+  return retVal;
+}