Initial checkin of gRPC to third_party/

third_party/grpc/src/objective-c/GRPCClient/GRPCCall+OAuth2.m

Index: third_party/grpc/src/objective-c/GRPCClient/GRPCCall+OAuth2.m
diff --git a/third_party/WebKit/Source/core/loader/PrerendererClient.h b/third_party/grpc/src/objective-c/GRPCClient/GRPCCall+OAuth2.m
similarity index 64%
copy from third_party/WebKit/Source/core/loader/PrerendererClient.h
copy to third_party/grpc/src/objective-c/GRPCClient/GRPCCall+OAuth2.m
index 72c1f2055bc0723fbe7d5e15ca38e035f38ffec6..83b0de18e32e45c3a150802efbc998a4ebfcc35e 100644
--- a/third_party/WebKit/Source/core/loader/PrerendererClient.h
+++ b/third_party/grpc/src/objective-c/GRPCClient/GRPCCall+OAuth2.m
@@ -1,5 +1,7 @@
 /*
- * Copyright (C) 2012 Google Inc. All rights reserved.
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -29,31 +31,33 @@
  *
  */
 
-#ifndef PrerendererClient_h
-#define PrerendererClient_h
-
-#include "core/CoreExport.h"
-#include "core/page/Page.h"
-#include "platform/Supplementable.h"
-
-namespace blink {
-
-class Page;
-class Prerender;
+#import "GRPCCall+OAuth2.h"
 
-class CORE_EXPORT PrerendererClient : public Supplement<Page> {
-public:
-    virtual void willAddPrerender(Prerender*) = 0;
+static NSString * const kAuthorizationHeader = @"authorization";
+static NSString * const kBearerPrefix = @"Bearer ";
+static NSString * const kChallengeHeader = @"www-authenticate";
 
-    static const char* supplementName();
-    static PrerendererClient* from(Page*);
+@implementation GRPCCall (OAuth2)
 
-protected:
-    PrerendererClient() { }
-};
+- (NSString *)oauth2AccessToken {
+  NSString *headerValue = self.requestHeaders[kAuthorizationHeader];
+  if ([headerValue hasPrefix:kBearerPrefix]) {
+    return [headerValue substringFromIndex:kBearerPrefix.length];
+  } else {
+    return nil;
+  }
+}
 
-CORE_EXPORT void providePrerendererClientTo(Page&, PrerendererClient*);
+- (void)setOauth2AccessToken:(NSString *)token {
+  if (token) {
+    self.requestHeaders[kAuthorizationHeader] = [kBearerPrefix stringByAppendingString:token];
+  } else {
+    [self.requestHeaders removeObjectForKey:kAuthorizationHeader];
+  }
+}
 
-} // namespace blink
+- (NSString *)oauth2ChallengeHeader {
+  return self.responseHeaders[kChallengeHeader];
+}
 
-#endif // PrerendererClient_h
+@end