FilterPolicy consolidation, part 2/2 (#5966)

Summary:
The parts that are used to implement FilterPolicy /
NewBloomFilterPolicy and not used other than for the block-based table
should be consolidated under table/block_based/filter_policy*.

This change is step 2 of 2:
mv util/bloom.cc table/block_based/filter_policy.cc
This gets its own PR so that git has the best chance of following the
rename for blame purposes. Note that low-level shared implementation
details of Bloom filters remain in util/bloom_impl.h, and
util/bloom_test.cc remains where it is for now.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5966

Test Plan: make check

Differential Revision: D18124930

Pulled By: pdillinger

fbshipit-source-id: 823bc09025b3395f092ef46a46aa5ba92a914d84

CMakeLists.txt

@@ -599,6 +599,7 @@ set(SOURCES
         table/block_based/data_block_hash_index.cc
         table/block_based/data_block_footer.cc
         table/block_based/filter_block_reader_common.cc
+        table/block_based/filter_policy.cc
         table/block_based/flush_block_policy.cc
         table/block_based/full_filter_block.cc
         table/block_based/index_builder.cc
@@ -638,7 +639,6 @@ set(SOURCES
         tools/trace_analyzer_tool.cc
         trace_replay/trace_replay.cc
         trace_replay/block_cache_tracer.cc
-        util/bloom.cc
         util/coding.cc
         util/compaction_job_stats_impl.cc
         util/comparator.cc

TARGETS

@@ -230,6 +230,7 @@ cpp_library(
         "table/block_based/data_block_footer.cc",
         "table/block_based/data_block_hash_index.cc",
         "table/block_based/filter_block_reader_common.cc",
+        "table/block_based/filter_policy.cc",
         "table/block_based/flush_block_policy.cc",
         "table/block_based/full_filter_block.cc",
         "table/block_based/index_builder.cc",
@@ -265,7 +266,6 @@ cpp_library(
         "tools/sst_dump_tool.cc",
         "trace_replay/block_cache_tracer.cc",
         "trace_replay/trace_replay.cc",
-        "util/bloom.cc",
         "util/build_version.cc",
         "util/coding.cc",
         "util/compaction_job_stats_impl.cc",

src.mk

@@ -125,6 +125,7 @@ LIB_SOURCES =                                                   \
   table/block_based/data_block_hash_index.cc                    \
   table/block_based/data_block_footer.cc                        \
   table/block_based/filter_block_reader_common.cc               \
+  table/block_based/filter_policy.cc                                                 \
   table/block_based/flush_block_policy.cc                       \
   table/block_based/full_filter_block.cc                        \
   table/block_based/index_builder.cc                            \
@@ -157,7 +158,6 @@ LIB_SOURCES =                                                   \
   tools/dump/db_dump_tool.cc                                    \
   trace_replay/trace_replay.cc                                  \
   trace_replay/block_cache_tracer.cc                            \
-  util/bloom.cc                                                 \
   util/build_version.cc                                         \
   util/coding.cc                                                \
   util/compaction_job_stats_impl.cc                             \