Fix embarassing purify error due to length mismatch.

BUG=NONE
TEST=PickleTest.EvilLengths
TBR=cpu

Review URL: http://codereview.chromium.org/149011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@19255 0039d316-1c4b-4281-b951-d872f2087c98

base/pickle_unittest.cc

@@ -222,7 +222,7 @@ TEST(PickleTest, EqualsOperator) {
 
 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.