Rewrite std::string("") to std::string(), Linux edition.

net/spdy/spdy_framer_test.cc

 // Copyright (c) 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.
 
 #include <algorithm>
 #include <iostream>
 #include <limits>
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 1808 matching lines @@
       CompareFrame(kDescription, *frame, kV4FrameData, arraysize(kV4FrameData));
     }
   }
 
   {
     const char kDescription[] =
         "SYN_STREAM frame with a 0-length header name, highest pri, FIN, "
         "max stream ID";
 
     SpdyHeaderBlock headers;
-    headers[""] = "foo";
+    headers[std::string()] = "foo";
     headers["foo"] = "bar";
 
     const unsigned char kV2FrameData[] = {
       0x80, spdy_version_, 0x00, 0x01,
       0x01, 0x00, 0x00, 0x1D,
       0x7f, 0xff, 0xff, 0xff,
       0x7f, 0xff, 0xff, 0xff,
       0x00, 0x00, 0x00, 0x02,
       0x00, 0x00, 0x00, 0x03,
       'f',  'o',  'o',  0x00,
@@ skipping 256 matching lines @@
     } else {
       CompareFrame(kDescription, *frame, kV4FrameData, arraysize(kV4FrameData));
     }
   }
 
   {
     const char kDescription[] =
         "SYN_REPLY frame with a 0-length header name, FIN, max stream ID";
 
     SpdyHeaderBlock headers;
-    headers[""] = "foo";
+    headers[std::string()] = "foo";
     headers["foo"] = "bar";
 
     const unsigned char kV2FrameData[] = {
       0x80, spdy_version_, 0x00, 0x02,
       0x01, 0x00, 0x00, 0x19,
       0x7f, 0xff, 0xff, 0xff,
       0x00, 0x00, 0x00, 0x02,
       0x00, 0x00, 0x00, 0x03,
       'f',  'o',  'o',  0x00,
       0x03, 'f',  'o',  'o',
@@ skipping 495 matching lines @@
     } else {
       CompareFrame(kDescription, *frame, kV4FrameData, arraysize(kV4FrameData));
     }
   }
 
   {
     const char kDescription[] =
         "HEADERS frame with a 0-length header name, FIN, max stream ID";
 
     SpdyHeaderBlock headers;
-    headers[""] = "foo";
+    headers[std::string()] = "foo";
     headers["foo"] = "bar";
 
     const unsigned char kV2FrameData[] = {
       0x80, spdy_version_, 0x00, 0x08,
       0x01, 0x00, 0x00, 0x19,
       0x7f, 0xff, 0xff, 0xff,
       0x00, 0x00, 0x00, 0x02,
       0x00, 0x00, 0x00, 0x03,
       'f',  'o',  'o',  0x00,
       0x03, 'f',  'o',  'o',
@@ skipping 1498 matching lines @@
                         arraysize(kV3FrameData));
   } else {
     framer.ProcessInput(reinterpret_cast<const char*>(kV4FrameData),
                         arraysize(kV4FrameData));
   }
   EXPECT_EQ(SpdyFramer::SPDY_RESET, framer.state());
   EXPECT_EQ(SpdyFramer::SPDY_NO_ERROR, framer.error_code());
 }
 
 }  // namespace net