Hide location bar on WebKit programmatic scroll.

cc/input/top_controls_manager.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/input/top_controls_manager.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/time.h"
@@ skipping 49 matching lines @@
 
   if (!enable) {
     ResetAnimations();
     if (controls_top_offset_ != 0) {
       SetupAnimation(SHOWING_CONTROLS);
       client_->setNeedsRedraw();
     }
   }
 }
 
+void TopControlsManager::ShowTopControls(bool show) {

[John Knottenbelt, 2013/03/25 15:29:48]

c++ indenting instead of java style

+    if (show) {
+        if (controls_top_offset_ == 0)
+            return;
+        SetupAnimation(SHOWING_CONTROLS);
+    } else {
+        DCHECK(enable_hiding_);
+        if (controls_top_offset_ == -top_controls_height_)
+            return;
+        SetupAnimation(HIDING_CONTROLS);
+    }
+}
+
 void TopControlsManager::ScrollBegin() {
   ResetAnimations();
   current_scroll_delta_ = 0.f;
   controls_scroll_begin_offset_ = controls_top_offset_;
 }
 
 gfx::Vector2dF TopControlsManager::ScrollBy(
     const gfx::Vector2dF pending_delta) {
   if (!enable_hiding_ && pending_delta.y() > 0)
     return pending_delta;
@@ skipping 108 matching lines @@
 
   if ((animation_direction_ == SHOWING_CONTROLS && new_offset >= 0) ||
       (animation_direction_ == HIDING_CONTROLS
           && new_offset <= -top_controls_height_)) {
     return true;
   }
   return false;
 }
 
 }  // namespace cc