add should_shrink_next_tap_ to SetSelectionOptions

This is for http://crrev.com/c/653432 [Smart Selection] Shrinking
selection after Smart Selection expansion.

Bug: 703884
Change-Id: Id32c5214f60de42bc3c9fd5abe5582c0f0aff7fa
Reviewed-on: https://chromium-review.googlesource.com/701422
Commit-Queue: Shimi Zhang <ctzsm@chromium.org>
Reviewed-by: Yoshifumi Inoue <yosin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#506872}

third_party/WebKit/Source/core/editing/SetSelectionOptions.cpp

@@ -68,4 +68,10 @@ SetSelectionOptions::Builder& SetSelectionOptions::Builder::SetShouldShowHandle(
   return *this;
 }
 
+SetSelectionOptions::Builder&
+SetSelectionOptions::Builder::SetShouldShrinkNextTap(bool new_value) {
+  data_.should_shrink_next_tap_ = new_value;
+  return *this;
+}
+
 }  // namespace blink

third_party/WebKit/Source/core/editing/SetSelectionOptions.h

@@ -34,6 +34,7 @@ class CORE_EXPORT SetSelectionOptions final {
   bool ShouldClearTypingStyle() const { return should_clear_typing_style_; }
   bool ShouldCloseTyping() const { return should_close_typing_; }
   bool ShouldShowHandle() const { return should_show_handle_; }
+  bool ShouldShrinkNextTap() const { return should_shrink_next_tap_; }
 
  private:
   CursorAlignOnScroll cursor_align_on_scroll_ = CursorAlignOnScroll::kIfNeeded;
@@ -44,6 +45,7 @@ class CORE_EXPORT SetSelectionOptions final {
   bool should_clear_typing_style_ = false;
   bool should_close_typing_ = false;
   bool should_show_handle_ = false;
+  bool should_shrink_next_tap_ = false;
 };
 
 // This class is used for building |SelectionData| object.
@@ -64,6 +66,7 @@ class CORE_EXPORT SetSelectionOptions::Builder final {
   Builder& SetShouldClearTypingStyle(bool);
   Builder& SetShouldCloseTyping(bool);
   Builder& SetShouldShowHandle(bool);
+  Builder& SetShouldShrinkNextTap(bool);
 
  private:
   SetSelectionOptions data_;

third_party/WebKit/Source/core/editing/SetSelectionOptionsTest.cpp

@@ -22,6 +22,7 @@ TEST_F(SetSelectionOptionsTest, DefaultValues) {
   EXPECT_FALSE(options.ShouldClearTypingStyle());
   EXPECT_FALSE(options.ShouldCloseTyping());
   EXPECT_FALSE(options.ShouldShowHandle());
+  EXPECT_FALSE(options.ShouldShrinkNextTap());
 }
 
 TEST_F(SetSelectionOptionsTest, Setter) {
@@ -34,7 +35,8 @@ TEST_F(SetSelectionOptionsTest, Setter) {
       .SetSetSelectionBy(SetSelectionBy::kUser)
       .SetShouldClearTypingStyle(true)
       .SetShouldCloseTyping(true)
-      .SetShouldShowHandle(true);
+      .SetShouldShowHandle(true)
+      .SetShouldShrinkNextTap(true);
 
   SetSelectionOptions options = builder.Build();
 
@@ -46,6 +48,7 @@ TEST_F(SetSelectionOptionsTest, Setter) {
   EXPECT_TRUE(options.ShouldClearTypingStyle());
   EXPECT_TRUE(options.ShouldCloseTyping());
   EXPECT_TRUE(options.ShouldShowHandle());
+  EXPECT_TRUE(options.ShouldShrinkNextTap());
 }
 
 }  // namespace blink