Delete gesture_action.py and remove support for JSON attributes

tools/telemetry/telemetry/page/actions/page_action.py

Index: tools/telemetry/telemetry/page/actions/page_action.py
diff --git a/tools/telemetry/telemetry/page/actions/page_action.py b/tools/telemetry/telemetry/page/actions/page_action.py
index 0acc1e3f309c3d06b41d38a1af421c7d7e34c692..eca96a594f63ac63e7790027b025177df6dbdc4c 100644
--- a/tools/telemetry/telemetry/page/actions/page_action.py
+++ b/tools/telemetry/telemetry/page/actions/page_action.py
@@ -4,6 +4,8 @@
 
 import re
 
+from telemetry import decorators
+
 class PageActionNotSupported(Exception):
   pass
 
@@ -14,11 +16,6 @@ class PageActionFailed(Exception):
 class PageAction(object):
   """Represents an action that a user might try to perform to a page."""
 
-  def __init__(self, attributes=None):
-    if attributes:
-      for k, v in attributes.iteritems():
-        setattr(self, k, v)
-
   def WillRunAction(self, tab):
     """Override to do action-specific setup before
     Test.WillRunAction is called."""
@@ -30,7 +27,6 @@ class PageAction(object):
   def CleanUp(self, tab):
     pass
 
-
 def EvaluateCallbackWithElement(
     tab, callback_js, selector=None, text=None, element_function=None,
     wait=False, timeout_in_seconds=60):
@@ -114,3 +110,23 @@ def EvaluateCallbackWithElement(
 
 def _EscapeSelector(selector):
   return selector.replace('\'', '\\\'')
+
+def GetGestureSourceTypeFromOptions(tab):
+  gesture_source_type = tab.browser.synthetic_gesture_source_type
+  return 'chrome.gpuBenchmarking.' + gesture_source_type.upper() + '_INPUT'
+
+@decorators.Cache
+def IsGestureSourceTypeSupported(tab, gesture_source_type):
+  # TODO(dominikg): remove once support for
+  #                 'chrome.gpuBenchmarking.gestureSourceTypeSupported' has
+  #                 been rolled into reference build.
+  if tab.EvaluateJavaScript("""
+      typeof chrome.gpuBenchmarking.gestureSourceTypeSupported ===
+          'undefined'"""):
+    return (tab.browser.platform.GetOSName() != 'mac' or
+            gesture_source_type.lower() != 'touch')
+
+  return tab.EvaluateJavaScript("""
+      chrome.gpuBenchmarking.gestureSourceTypeSupported(
+          chrome.gpuBenchmarking.%s_INPUT)"""
+      % (gesture_source_type.upper()))