Fix type conversion issues for Android x64

content/browser/indexed_db/indexed_db_leveldb_coding_unittest.cc

Index: content/browser/indexed_db/indexed_db_leveldb_coding_unittest.cc
===================================================================
--- content/browser/indexed_db/indexed_db_leveldb_coding_unittest.cc	(revision 258902)
+++ content/browser/indexed_db/indexed_db_leveldb_coding_unittest.cc	(working copy)
@@ -296,7 +296,7 @@
     slice = StringPiece(&*v.begin(), v.size() - 1);
     EXPECT_FALSE(DecodeVarInt(&slice, &res));
 
-    slice = StringPiece(&*v.begin(), 0u);
+    slice = StringPiece(&*v.begin(), static_cast<size_t>(0));
     EXPECT_FALSE(DecodeVarInt(&slice, &res));
 
     // Verify decoding at an offset, to detect unaligned memory access.
@@ -408,7 +408,7 @@
     slice = StringPiece(&*v.begin(), v.size() - 1);
     EXPECT_FALSE(DecodeStringWithLength(&slice, &res));
 
-    slice = StringPiece(&*v.begin(), 0u);
+    slice = StringPiece(&*v.begin(), static_cast<size_t>(0));
     EXPECT_FALSE(DecodeStringWithLength(&slice, &res));
 
     // Verify decoding at an offset, to detect unaligned memory access.
@@ -516,7 +516,7 @@
     slice = StringPiece(&*v.begin(), v.size() - 1);
     EXPECT_FALSE(DecodeBinary(&slice, &result));
 
-    slice = StringPiece(&*v.begin(), 0u);
+    slice = StringPiece(&*v.begin(), static_cast<size_t>(0));
     EXPECT_FALSE(DecodeBinary(&slice, &result));
 
     // Verify decoding at an offset, to detect unaligned memory access.
@@ -557,7 +557,7 @@
     slice = StringPiece(&*v.begin(), v.size() - 1);
     EXPECT_FALSE(DecodeDouble(&slice, &result));
 
-    slice = StringPiece(&*v.begin(), 0u);
+    slice = StringPiece(&*v.begin(), static_cast<size_t>(0));
     EXPECT_FALSE(DecodeDouble(&slice, &result));
 
     // Verify decoding at an offset, to detect unaligned memory access.
@@ -602,7 +602,7 @@
     slice = StringPiece(&*v.begin(), v.size() - 1);
     EXPECT_FALSE(DecodeIDBKey(&slice, &decoded_key));
 
-    slice = StringPiece(&*v.begin(), 0u);
+    slice = StringPiece(&*v.begin(), static_cast<size_t>(0));
     EXPECT_FALSE(DecodeIDBKey(&slice, &decoded_key));
   }
 }