Android: Fix incorrect variable names in comments

Found by errorprone. I'm surprised that they were not caught earlier.

Tbr: Comment changes.
Bug: None
Change-Id: Ia26be03885df3a416978686ad6581be9cd1ec376
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2100708Reviewed-by: Peter Wen <wnwen@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Commit-Queue: Peter Wen <wnwen@chromium.org>
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Auto-Submit: Peter Wen <wnwen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#749675}

chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchSelectionController.java

@@ -512,7 +512,7 @@ public class ContextualSearchSelectionController {
         if (basePageWebContents != null) {
             mDidExpandSelection = true;
             basePageWebContents.adjustSelectionByCharacterOffset(
-                    selectionStartAdjust, selectionEndAdjust, /* show_selection_menu = */ false);
+                    selectionStartAdjust, selectionEndAdjust, /* showSelectionMenu= */ false);
         }
     }
 

chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageLayout.java

@@ -989,8 +989,8 @@ public class NewTabPageLayout extends LinearLayout implements TileGroup.Observer
             Drawable drawable = mAssistantVoiceSearchService.getCurrentMicDrawable();
             mVoiceSearchButton.setImageDrawable(drawable);
 
-            final @ColorRes int primaryColor =
-                    ChromeColors.getDefaultThemeColor(getResources(), /* isIncognito= */ false);
+            final @ColorRes int primaryColor = ChromeColors.getDefaultThemeColor(
+                    getResources(), /* forceDarkBgColor= */ false);
             ColorStateList colorStateList = mAssistantVoiceSearchService.getMicButtonColorStateList(
                     primaryColor, getContext());
             ApiCompatibilityUtils.setImageTintList(mVoiceSearchButton, colorStateList);