No longer consider find-in-page in BottomSheet

The BottomSheet previously attempted to check the state of find-in-page
by looking up its view. Not only does this not work correctly, but
there does not appear to be any poor interaction between the widget and
find-in-page. This code has been removed.

Bug: 1002277
Change-Id: Idd9f39605365c177c72a98d82a84407bb801c8d8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2040172Reviewed-by: Theresa  <twellington@chromium.org>
Commit-Queue: Matthew Jones <mdjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#738728}

chrome/android/java/src/org/chromium/chrome/browser/widget/bottomsheet/BottomSheet.java

@@ -122,9 +122,6 @@ class BottomSheet extends FrameLayout
     @Nullable
     protected BottomSheetContent mSheetContent;
 
-    /** A handle to the find-in-page toolbar. */
-    private View mFindInPageView;
-
     /** A handle to the FrameLayout that holds the content of the bottom sheet. */
     private TouchRestrictingFrameLayout mBottomSheetContentContainer;
 
@@ -227,7 +224,7 @@ class BottomSheet extends FrameLayout
         // anything with them.
         if (!mIsTouchEnabled) return true;
 
-        if (!canMoveSheet()) return false;
+        if (isHiding()) return false;
 
         return mGestureDetector.onInterceptTouchEvent(e);
     }
@@ -1135,19 +1132,6 @@ class BottomSheet extends FrameLayout
         return mToolbarShadowHeight;
     }
 
-    /**
-     * Checks whether the sheet can be moved. It cannot be moved when the activity is in overview
-     * mode, when "find in page" is visible, when the toolbar is in the animation to hide, or when
-     * the toolbar is hidden.
-     */
-    protected boolean canMoveSheet() {
-        if (mFindInPageView == null) mFindInPageView = findViewById(R.id.find_toolbar);
-        boolean isFindInPageVisible =
-                mFindInPageView != null && mFindInPageView.getVisibility() == View.VISIBLE;
-
-        return !isFindInPageVisible && mTargetState != SheetState.HIDDEN;
-    }
-
     /**
      * Called when the sheet content has changed, to update dependent state and notify observers.
      * @param content The new sheet content, or null if the sheet has no content.