Fix embarassing purify error due to length mismatch....

base/pickle_unittest.cc

 // Copyright (c) 2006-2008 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 <string>
 
 #include "base/basictypes.h"
 #include "base/pickle.h"
 #include "base/scoped_ptr.h"
 #include "base/string16.h"
@@ skipping 204 matching lines @@
 
   Pickle copy_refs_source_buffer(static_cast<const char*>(source.data()),
                                  source.size());
   Pickle copy;
   copy = copy_refs_source_buffer;
   ASSERT_EQ(source.size(), copy.size());
 }
 
 TEST(PickleTest, EvilLengths) {
   Pickle source;
-  std::string str(10000, 'A');
+  std::string str(100000, 'A');
   source.WriteData(str.c_str(), 100000);
   // ReadString16 used to have its read buffer length calculation wrong leading
   // to out-of-bounds reading.
   void* iter = NULL;
   string16 str16;
   EXPECT_FALSE(source.ReadString16(&iter, &str16));
 
   // And check we didn't break ReadString16.
   str16 = (wchar_t) 'A';
   Pickle str16_pickle;
   str16_pickle.WriteString16(str16);
   iter = NULL;
   EXPECT_TRUE(str16_pickle.ReadString16(&iter, &str16));
   EXPECT_EQ(1U, str16.length());
 
   // Check we don't fail in a length check with large WStrings.
   Pickle big_len;
   big_len.WriteInt(1 << 30);
   iter = NULL;
   std::wstring wstr;
   EXPECT_FALSE(big_len.ReadWString(&iter, &wstr));
 }