Adding experimental maximize mode (behind a flag)

This experimental feature is behind a flag and allows our user interface designers to experiment with an always maximized window mode. It also removes certain context menu options which make no sense in that mode anymore.

No goals for this CL are:
  - The minimal / maximal window size properties of V2 apps will get ignored, and the apps will always get maximized.
  - Rather then not creating buttons in the first place, they only get hidden to keep the changes to the code to a minimum.

Note: Since this feature is entirely experimental + behind a flag + subject to change + does only contain minor behavioral changes, there are no unit tests for this at this time.

BUG=230510
TEST=visual (browser, hosted apps, V1 apps)

Review URL: https://chromiumcodereview.appspot.com/13934007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@197856 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 11 insertions, 0 deletions

diff --git a/ash/wm/workspace/frame_maximize_button.cc b/ash/wm/workspace/frame_maximize_button.cc
index d258b378..0329e3f 100644
--- a/ash/wm/workspace/frame_maximize_button.cc
+++ b/ash/wm/workspace/frame_maximize_button.cc
@@ -91,6 +91,9 @@ FrameMaximizeButton::FrameMaximizeButton(views::ButtonListener* listener,
       bubble_appearance_delay_ms_(kBubbleAppearanceDelayMS) {
   // TODO(sky): nuke this. It's temporary while we don't have good images.
   SetImageAlignment(ALIGN_LEFT, ALIGN_BOTTOM);
+
+  if (ash::Shell::IsForcedMaximizeMode())
+    views::View::SetVisible(false);
 }
 
 FrameMaximizeButton::~FrameMaximizeButton() {
@@ -306,6 +309,14 @@ void FrameMaximizeButton::OnGestureEvent(ui::GestureEvent* event) {
   ImageButton::OnGestureEvent(event);
 }
 
+void FrameMaximizeButton::SetVisible(bool visible) {
+  // In the enforced maximized mode we do not allow to be made visible.
+  if (ash::Shell::IsForcedMaximizeMode())
+    return;
+
+  views::View::SetVisible(visible);
+}
+
 void FrameMaximizeButton::ProcessStartEvent(const ui::LocatedEvent& event) {
   DCHECK(is_snap_enabled_);
   // Prepare the help menu.