Rename to agent_state_.ClearAllFields().

I thought it was nice to name everything Clear, but when I tried
to use it in one of the pending PRs it felt too much like action
from a distance to clear the agent state which causes the fields
to be cleared. So the more explicit name (like you suggested it)
is better. Sorry about the churn.

Change-Id: I33ab0b02a714dd93c2375ec28327a5eb58748135
Reviewed-on: https://chromium-review.googlesource.com/1159996Reviewed-by: Andrey Kosyakov <caseq@chromium.org>
Commit-Queue: Johannes Henkel <johannes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#580235}

third_party/blink/renderer/core/inspector/inspector_session_state.cc

@@ -106,7 +106,7 @@ void InspectorAgentState::InitFrom(InspectorSessionState* session_state) {
     f->InitFrom(session_state);
 }
 
-void InspectorAgentState::Clear() {
+void InspectorAgentState::ClearAllFields() {
   for (Field* f : fields_)
     f->Clear();
 }

third_party/blink/renderer/core/inspector/inspector_session_state.h

@@ -270,7 +270,7 @@ class CORE_EXPORT InspectorAgentState {
   void InitFrom(InspectorSessionState* session_state);
 
   // Clears all fields registered with this InspectorAgentState instance.
-  void Clear();
+  void ClearAllFields();
 
  private:
   const WTF::String domain_name_;

third_party/blink/renderer/core/inspector/inspector_session_state_test.cc

@@ -236,7 +236,7 @@ TEST(InspectorSessionStateTest, MultipleAgents) {
     AgentWithMapFields maps_agent;
     maps_agent.agent_state_.InitFrom(&session_state);
     maps_agent.strings_.Set("foo", "bar");
-    maps_agent.agent_state_.Clear();
+    maps_agent.agent_state_.ClearAllFields();
 
     EXPECT_TRUE(maps_agent.doubles_.IsEmpty());
     EXPECT_TRUE(maps_agent.strings_.IsEmpty());
@@ -250,7 +250,7 @@ TEST(InspectorSessionStateTest, MultipleAgents) {
     InspectorSessionState session_state(dev_tools_session.CloneCookie());
     AgentWithSimpleFields simple_agent;
     simple_agent.agent_state_.InitFrom(&session_state);
-    simple_agent.agent_state_.Clear();
+    simple_agent.agent_state_.ClearAllFields();
 
     dev_tools_session.ApplyUpdates(session_state.TakeUpdates());
   }