First stab at Mac breakpad support.

chrome/app/breakpad_mac.mm

Index: chrome/app/breakpad_mac.mm
diff --git a/chrome/app/breakpad_mac.mm b/chrome/app/breakpad_mac.mm
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+// Copyright (c) 2009 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 "chrome/app/breakpad_mac.h"
+
+#import <objc/objc-class.h>
+#import <Foundation/Foundation.h>
+
+#import "base/basictypes.h"
+#import "base/logging.h"
+#import "base/scoped_nsautorelease_pool.h"
+
+// TODO(jeremy): Remove this block once we include the breakpad sources
+// in the public tree.
+@interface GoogleBreakpadWrapper : NSObject
+  +(void*)Create:(NSDictionary*) parameters;
+  +(void)Release:(void*) ref;
+@end
+typedef void* GoogleBreakpadRef;
+
+namespace {
+
+// TODO(jeremy): On Windows we store the current URL when a process crashes
+// we probably want to do the same on OS X.
+
+GoogleBreakpadRef gBreakpadRef = NULL;
+
+// Did the user optin for reporting stats.
+bool IsStatsReportingAllowed() {
+  NOTIMPLEMENTED();
+  return true;
+}
+
+} // namespace
+
+bool IsCrashReporterEnabled() {
+  return gBreakpadRef == NULL;
+}
+
+void DestructCrashReporter() {
+  if (gBreakpadRef) {
+    Class breakpad_interface = objc_getClass("GoogleBreakpadWrapper");
+    [breakpad_interface Release:gBreakpadRef];
+    gBreakpadRef = NULL;
+  }
+}
+
+void InitCrashReporter() {
+  DCHECK(gBreakpadRef == NULL);
+  base::ScopedNSAutoreleasePool autorelease_pool;
+
+  // Check for Send stats preference. If preference is not specifically turned
+  // on then disable crash reporting.
+  if (!IsStatsReportingAllowed()) {
+    LOG(WARNING) << "Breakpad disabled";
+    return;
+  }
+
+  NSBundle* main_bundle = [NSBundle mainBundle];
+
+  // Get location of breakpad.
+  NSString* breakpadBundlePath = [[main_bundle privateFrameworksPath]
+      stringByAppendingPathComponent:@"GoogleBreakpad.framework"];
+
+  BOOL is_dir = NO;
+  if (![[NSFileManager defaultManager] fileExistsAtPath:breakpadBundlePath
+                                            isDirectory:&is_dir] || !is_dir) {
+    return;
+  }
+
+  NSBundle* breakpad_bundle = [NSBundle bundleWithPath:breakpadBundlePath];
+  if (![breakpad_bundle load]) {
+     LOG(ERROR) << "Failed to load Breakpad framework.";
+    return;
+  }
+
+  Class breakpad_interface = [breakpad_bundle
+      classNamed:@"GoogleBreakpadWrapper"];
+
+  if (!breakpad_interface) {
+     LOG(ERROR) << "Failed to find GoogleBreakpadWrapper class.";
+    return;
+  }
+
+  NSDictionary* info_dictionary = [main_bundle infoDictionary];
+  GoogleBreakpadRef breakpad = 0;
+  breakpad = [breakpad_interface Create:info_dictionary];
+  if (!breakpad) {
+    LOG(ERROR) << "Breakpad init failed.";
+    return;
+  }
+
+  gBreakpadRef = breakpad;
+}