Make tile size a function of the device scale factor.

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 70018529461632f39c8e3a5a4a3f8d5db9fc3465..da80512aa76ef87c82608f0592c8621e156b6c7b 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -235,18 +235,6 @@ const FeatureEntry::Choice kShowSavedCopyChoices[] = {
     error_page::switches::kDisableShowSavedCopy }
 };
 
-const FeatureEntry::Choice kDefaultTileWidthChoices[] = {
-  { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
-  { IDS_FLAGS_DEFAULT_TILE_WIDTH_SHORT,
-    switches::kDefaultTileWidth, "128"},
-  { IDS_FLAGS_DEFAULT_TILE_WIDTH_TALL,
-    switches::kDefaultTileWidth, "256"},
-  { IDS_FLAGS_DEFAULT_TILE_WIDTH_GRANDE,

[enne (OOO), 2016/06/28 18:39:01]

*snrk*

-    switches::kDefaultTileWidth, "512"},
-  { IDS_FLAGS_DEFAULT_TILE_WIDTH_VENTI,
-    switches::kDefaultTileWidth, "1024"}
-};
-
 const FeatureEntry::Choice kDefaultTileHeightChoices[] = {
   { IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT, "", "" },
   { IDS_FLAGS_DEFAULT_TILE_HEIGHT_SHORT,
@@ -1075,12 +1063,6 @@ const FeatureEntry kFeatureEntries[] = {
     {"show-saved-copy", IDS_FLAGS_SHOW_SAVED_COPY_NAME,
      IDS_FLAGS_SHOW_SAVED_COPY_DESCRIPTION, kOsAll,
      MULTI_VALUE_TYPE(kShowSavedCopyChoices)},
-    {"default-tile-width", IDS_FLAGS_DEFAULT_TILE_WIDTH_NAME,
-     IDS_FLAGS_DEFAULT_TILE_WIDTH_DESCRIPTION, kOsAll,
-     MULTI_VALUE_TYPE(kDefaultTileWidthChoices)},
-    {"default-tile-height", IDS_FLAGS_DEFAULT_TILE_HEIGHT_NAME,
-     IDS_FLAGS_DEFAULT_TILE_HEIGHT_DESCRIPTION, kOsAll,
-     MULTI_VALUE_TYPE(kDefaultTileHeightChoices)},
     {"disable-gesture-requirement-for-media-playback",
      IDS_FLAGS_GESTURE_REQUIREMENT_FOR_MEDIA_PLAYBACK_NAME,
      IDS_FLAGS_GESTURE_REQUIREMENT_FOR_MEDIA_PLAYBACK_DESCRIPTION, kOsAll,