[Android WebView] Only throttle fallback tick

android_webview/browser/in_process_view_renderer.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 "android_webview/browser/in_process_view_renderer.h"
 
 #include <android/bitmap.h>
 
 #include "android_webview/browser/aw_gl_surface.h"
 #include "android_webview/browser/scoped_app_gl_state_restore.h"
@@ skipping 868 matching lines @@
       scaled_overscroll_delta - rounded_overscroll_delta;
   client_->DidOverscroll(rounded_overscroll_delta);
 }
 
 void InProcessViewRenderer::EnsureContinuousInvalidation(
     AwDrawGLInfo* draw_info,
     bool invalidate_ignore_compositor) {
   // This method should be called again when any of these conditions change.
   bool need_invalidate =
       compositor_needs_continuous_invalidate_ || invalidate_ignore_compositor;
-  bool throttle = (is_paused_ && !on_new_picture_enable_) ||
-                  (attached_to_window_ && !window_visible_);
-  if (!need_invalidate || block_invalidates_ || throttle)
+  if (!need_invalidate || block_invalidates_)
     return;
 
   if (draw_info) {
     draw_info->dirty_left = cached_global_visible_rect_.x();
     draw_info->dirty_top = cached_global_visible_rect_.y();
     draw_info->dirty_right = cached_global_visible_rect_.right();
     draw_info->dirty_bottom = cached_global_visible_rect_.bottom();
     draw_info->status_mask |= AwDrawGLInfo::kStatusMaskDraw;
   } else {
     client_->PostInvalidate();
   }
 
+  bool throttle_fallback_tick = (is_paused_ && !on_new_picture_enable_) ||
+                                (attached_to_window_ && !window_visible_);
+  if (throttle_fallback_tick)
+    return;
+
   block_invalidates_ = compositor_needs_continuous_invalidate_;
 
   // Unretained here is safe because the callback is cancelled when
   // |fallback_tick_| is destroyed.
   fallback_tick_.Reset(base::Bind(&InProcessViewRenderer::FallbackTickFired,
                                   base::Unretained(this)));
 
   // No need to reschedule fallback tick if compositor does not need to be
   // ticked. This can happen if this is reached because
   // invalidate_ignore_compositor is true.
@@ skipping 76 matching lines @@
     base::StringAppendF(&str,
                         "surface width height: [%d %d] ",
                         draw_info->width,
                         draw_info->height);
     base::StringAppendF(&str, "is_layer: %d ", draw_info->is_layer);
   }
   return str;
 }
 
 }  // namespace android_webview