Linux Aura: get tooltip background color from theme

the border color can still conflict with the theme (e.g., no visible border if the tooltip bg is dark), but fixing that is a lot harder because the border, window roundedness, and shadow are all one tiled set of images (see shadow.cc).

BUG=348194

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=266974

Review URL: https://codereview.chromium.org/258713002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@267000 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/libgtk2ui/native_theme_gtk2.cc

@@ -251,7 +251,11 @@ GdkColor NativeThemeGtk2::GetSystemGdkColor(ColorId color_id) const {
     case kColorId_TextfieldSelectionBackgroundFocused:
       return GetEntryStyle()->base[GTK_STATE_SELECTED];
 
-      // Trees and Tables (implemented on GTK using the same class)
+    // Tooltips
+    case kColorId_TooltipBackground:
+      return GetWindowStyle()->bg[GTK_STATE_NORMAL];
+
+    // Trees and Tables (implemented on GTK using the same class)
     case kColorId_TableBackground:
     case kColorId_TreeBackground:
       return GetTreeStyle()->bg[GTK_STATE_NORMAL];
@@ -326,9 +330,6 @@ GdkColor NativeThemeGtk2::GetSystemGdkColor(ColorId color_id) const {
       return GdkAlphaBlend(win_style->text[GTK_STATE_SELECTED],
                            win_style->bg[GTK_STATE_SELECTED], 0x34);
     }
-    default:
-      // Fall through
-      break;
   }
 
   return SkColorToGdkColor(kInvalidColorIdColor);

ui/native_theme/fallback_theme.cc

@@ -66,6 +66,8 @@ SkColor FallbackTheme::GetSystemColor(ColorId color_id) const {
   static const SkColor kTextfieldSelectionColor =
       color_utils::AlphaBlend(SK_ColorBLACK,
           kTextfieldSelectionBackgroundFocused, 0xdd);
+  // Tooltip
+  static const SkColor kTooltipBackground = 0xFFFFFFCC;
   // Tree
   static const SkColor kTreeBackground = SK_ColorWHITE;
   static const SkColor kTreeTextColor = SK_ColorBLACK;
@@ -184,6 +186,10 @@ SkColor FallbackTheme::GetSystemColor(ColorId color_id) const {
     case kColorId_TextfieldSelectionBackgroundFocused:
       return kTextfieldSelectionBackgroundFocused;
 
+    // Tooltip
+    case kColorId_TooltipBackground:
+      return kTooltipBackground;
+
     // Tree
     case kColorId_TreeBackground:
       return kTreeBackground;

ui/native_theme/native_theme.h

@@ -269,6 +269,8 @@ class NATIVE_THEME_EXPORT NativeTheme {
     kColorId_TextfieldReadOnlyBackground,
     kColorId_TextfieldSelectionColor,
     kColorId_TextfieldSelectionBackgroundFocused,
+    // Tooltip
+    kColorId_TooltipBackground,
     // Tree
     kColorId_TreeBackground,
     kColorId_TreeText,

ui/views/corewm/tooltip_aura.cc

@@ -12,13 +12,13 @@
 #include "ui/gfx/screen.h"
 #include "ui/gfx/text_elider.h"
 #include "ui/gfx/text_utils.h"
+#include "ui/native_theme/native_theme.h"
 #include "ui/views/background.h"
 #include "ui/views/border.h"
 #include "ui/views/widget/widget.h"
 
 namespace {
 
-const SkColor kTooltipBackground = 0xFFFFFFCC;
 const int kTooltipHorizontalPadding = 3;
 
 // Max visual tooltip width. If a tooltip is greater than this width, it will
@@ -60,8 +60,6 @@ TooltipAura::TooltipAura(gfx::ScreenType screen_type)
     : screen_type_(screen_type),
       widget_(NULL),
       tooltip_window_(NULL) {
-  label_.set_background(
-      views::Background::CreateSolidBackground(kTooltipBackground));
   label_.set_owned_by_client();
   label_.SetMultiLine(true);
 }
@@ -234,6 +232,11 @@ void TooltipAura::SetText(aura::Window* window,
       2 * kTooltipVerticalPadding;
   CreateWidget();
   SetTooltipBounds(location, width, height);
+
+  label_.set_background(
+      views::Background::CreateSolidBackground(
+          widget_->GetNativeTheme()->GetSystemColor(
+              ui::NativeTheme::kColorId_TooltipBackground)));
 }
 
 void TooltipAura::Show() {