Reland: Add ETC1 powered SSE encoder for tile texture compression

cc/BUILD.gn

 # Copyright 2014 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.
 
 import("//testing/test.gni")
 
 component("cc") {
   sources = [
     "animation/animation.cc",
     "animation/animation.h",
@@ skipping 532 matching lines @@
     "//ui/gfx",
     "//ui/gfx/geometry",
   ]
 
   defines = [ "CC_IMPLEMENTATION=1" ]
 
   if (!is_debug && (is_win || is_android)) {
     configs -= [ "//build/config/compiler:optimize" ]
     configs += [ "//build/config/compiler:optimize_max" ]
   }
+
+  if (target_cpu == "ia32" || target_cpu == "x64") {

[reveman, 2015/05/07 16:26:29]

Should we add "source_set("cc_opts_sse")" here and add a

source_set("cc_opts") {
  deps = [
    "//cc:cc_opts_sse",
  ]
}

to be consistent with the gyp build?

[radu.velea, 2015/05/08 10:52:10]

Done.

+    sources += [
+      "resources/texture_compressor_etc1_sse.cc",
+      "resources/texture_compressor_etc1_sse.h",
+    ]
+    cflags = [ "-msse2" ]
+  }
 }
 
 source_set("test_support") {
   testonly = true
   sources = [
     "test/animation_test_common.cc",
     "test/animation_test_common.h",
     "test/begin_frame_args_test.cc",
     "test/begin_frame_args_test.h",
     "test/failure_output_surface.cc",
@@ skipping 237 matching lines @@
     "resources/picture_unittest.cc",
     "resources/pixel_ref_map_unittest.cc",
     "resources/platform_color_unittest.cc",
     "resources/prioritized_resource_unittest.cc",
     "resources/recording_source_unittest.cc",
     "resources/resource_provider_unittest.cc",
     "resources/resource_update_controller_unittest.cc",
     "resources/scoped_gpu_raster_unittest.cc",
     "resources/scoped_resource_unittest.cc",
     "resources/task_graph_runner_unittest.cc",
+    "resources/texture_compressor_etc1_unittest.cc",
     "resources/texture_mailbox_deleter_unittest.cc",
     "resources/texture_uploader_unittest.cc",
     "resources/tile_manager_unittest.cc",
     "resources/tile_priority_unittest.cc",
     "resources/tile_task_worker_pool_unittest.cc",
     "resources/video_resource_updater_unittest.cc",
     "scheduler/begin_frame_source_unittest.cc",
     "scheduler/delay_based_time_source_unittest.cc",
     "scheduler/scheduler_state_machine_unittest.cc",
     "scheduler/scheduler_unittest.cc",
@@ skipping 96 matching lines @@
     "//testing/gmock",
     "//testing/gtest",
     "//testing/perf",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//ui/gl",
   ]
 }
 # When adding support for isolates, please have a look at run-time dependencies
 # in the cc_unittests_run target in cc_tests.gyp.